How secretive are you about your fetish?

My approach to it is kind of "don't ask, don't tell".  I deliberately use the same username on here as elsewhere online so that people who want to or are curious can make the connection, but on the whole, sexual preferences aren't the kind of thing which come up in casual conversation with people.  Assorted therapists and professionals associated with my transition know, and close friends and sexual partners past and present know.  I came to the conclusion many years ago that if I felt the urge to tell someone, it was because I fancied them subconsciously and it wouldn't clearly communicate that message to them, so now I don't tell people.  It's possible I'll be more forthcoming in future.

I'm highly secretive, I think. My past few partners have known about my BE and belly inflation kinks, because they've broached the subject of kink. My latest partner was relieved actually; the way she saw it, at least I didn't get off on hurting women. That's all for people who know for certain, just three people outside of myself on the face of the planet.

I've got other kinky and kink-sympathetic friends. Sometimes we'll be having discussions on obscure paraphilias. The closest I get is mentioning that I've got some weird harmless ones, and that they aren't anything resembling BDSM, animal/anthro play, age play, or genderfuckery. It does keep them guessing, and no one's ever asked outright what I mean.

Finally, while I do have a Fetlife profile, I keep identifying information to a minimum. I don't have photos of myself, mention my occupation (which is actually categorized into its own fetish, and might be a boon if I did have it plastered up there? more than 110K people are into it, looks like), or friend anyone I personally know who has a profile there.

The way I see it, my sexuality is Mine. I set the boundaries on what I want to share with people, even down to the knowledge that I have kinks at all. I find my approach empowering, and I kinda wish other people dealt with their sexuality the same way. I tend to have a low opinion of folks who happily blunder their way through other people's boundaries while being wrapped up in their own kinks (frotteurists, certain varieties of exhibitionists and voyuerists, et cetera). The downside is that if you're not sharing your kinks willy-nilly, then the likelihood that you'll meet someone similar drops like a rock.

The only one who knows it is my ex-girlfriend. 

I think this thing is just a bed-room secret. Its a thing you only tell to your people in your sexual cirkel. Its not like all the people on the world have to know it.

A tip for a good relation, just be honnest about this part. Dont force your girlfriend/boyfriend in to it. And ceep it fun, dont hate yourself because of a fetish

Way too secretive. Nobody in my offline life knows about it. They don't even know I have a deviantArt page to begin with!

I've never told a soul about my inflation fetish. I think that's mostly because it developed long before the Internet and its open sharing came into being. I was well on my way in relationships, keeping my "weird" ideas to myself because I had no idea that anybody else had ever dreamed it up! I was already married to a wonderful partner when I first discovered inflation on the WWW. I've been lurking since forever, although I did post a few stories on the Overflowing Bra site, way back, and I was surprised and honored to find they turned up here.

This identity is totally separate from my real self and any other online identity I keep. It's probably not too late to "come out" but it's not the time for it, either. I think I would have loved for there to be more awareness of this fun little fetish when I was dating and been able to share it with someone, but I'm OK with how things are. At least I have enough time for now to de-lurk and maybe even share a little more writing. Always have ideas in the back of my head! :)

I mention it to people, but never refer to it as a fetish.
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It might have some elements with sexual energy to me, like women's beauty and that domination feeling, but I admire it at a much deeper and artistic level.

Lately, whenever somebody in an environment of personal growth asks me about my goal in life, I reply that I "want to create products that involve some character getting inflated as a balloon, as happens in cartoons". And then I add "specially women".

Might sound a little weird(and feels too), but luckily it is kind of accepted that artists be a little weird. By instance, how some people think Ren and Stimpy is a weird cartoon.
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I don't want my stuff being aimed only at the inflation community, but the WHOLE WORLD!!
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If I kept it only for myself, it would be really hard and close to impossible to create the kind of material that is achieved by a team. How many people was needed to make the movie "Who Framed Roger Rabbit"? How many people was needed to create the Super Mario Bros series of videogames, making the music, advertising the products, making the games evolve?
I don't have a team yet but that's what I want to end up doing.

Want to create a perfect inflation live action scene(as part of something that reaches big success) and a perfect 8 bit videogame.

I Think the perfect inflation scene and perfect video game have been achieved. The scene being in the movie "The Naked Gun 2 & 1/2", and the game being "Dig Dug".
They are part of a successful series. They are male inflations though, and I need to create some kind of female equivalents that make sense(since making a reenactment with identical situations probably wouldn't work). After achieving that, I could happily retire. But for reaching that point I will need a lot of experimentation. By instance, I feel none of my works reach perfection. I enjoy many of them though.
Just need to tell people that seeing a character inflate is my biggest passion, and that's why I experiment so much with it. Can't hide.

Probably my material won't need to have a label on it reading "body inflation material". Like neither "Dig Dug" nor "The Naked Gun 2 & 1/2" do either. They will just contain the scene or the gameplay. Some products with women protagonists not blowing up might be inbetween too.
When inflation is actually present, doing a little advertising on this site would help rising the sales ;-)
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Gosh, kind of digressing, but still related to how secretive I intend to be about Inflation when talking to people

One of my ex-girlfriends knows that, my current girlfriend and one of my friends I am not shy to talk about various erotic stuff with him (and he neither). And there are more friends that can be a little bit suspicious. I don't talk about it openly yet I cannot give some indications a miss when it comes to some jokes or lewd situations... Now I mean the broad definition of the inflation fetish as e.g. balloons, stories, pictures, fantasies etc. - but only the three persons I named above know about the self-inflating "level" of this passion but they are not impressed, they would call me a perv anyway :-).