Not literally of course.
While this site was offline, I passed the time speculating whether being inflated would make you high in the same way as drugs would. I was thinking in terms of adrenalin, endorphins, increase in carbon dioxide in the blood and nitrogen narcosis. It's probably wishful thinking of course but it's nice to imagine that's what would happen. Anyway, here's a blog entry to this effect.
http://amandaturlington.blogspot.co.uk/2016/02/would-being-inflated-make-you-high.html
Any comments? Am I just hoping or is there some chance I'm correct?
Personally, I like to think that it depends on what is inflation in imaginary world.
Nice work! ^_^
As I like to imagine it - inflation is a natural defence, so if it's slow enough then your character will enjoy natural endorphins and will feel comfortable.
You won't feel "high" though - defence isn't procreation ^_^ your body won't produce natural opiumates as during orgasm.
But... if your character is inflation fetishist and his/her favourite size is modest enough then this lucky character can reach the peak during inflation. I guess... ^_^