Does inflation leads to an expanding waistline?

Team Inflation, had a quick question to the vets.

I've been inflating for about a month now almost everyday, sometimes multiple times a day. I've noticed that my pants are starting to get tight along the belt. I don't know if this is due to weight gain or do to the muscles in my lower abdomen becoming more relaxed and just more loose.

When I inflate I generally pump with an aquarium pump till i'm borderline comfortable, then stand up and push my diaphragm out, this pushes everything out an makes my belly much rounder.

Anyways, i wanted to run it by the vets and see what your thoughts are.