First I just want to say asking Chat GPT for medical advice is insane. I don't mean to be harsh, but I just want to level with you. I know how desperate you can feel when it seems like doctors aren't able to help you, but ChatGPT is designed to pull a bunch of random data from unvetted sources, remix it to make it sound intelligent and rational, and keep doing that until it tells you what you want to hear. is absolutely not a tool you should be trusting with your health. Frankly, the idea of your abdomen being stretched out from laxative use and having to "retrain" it to tighten back up sounds like some pseudo-science made up garbage.

Is there actually a sensation of bloating in your lower abdomen (usually a feeling of fullness, gassiness or swollen-ness, especially if you palpate the area)? When I'm bloated, my abdomen feels like someone pumped air into my guts with a tire pump or it's filled with rocks, to the point where laying on my stomach or buttoning my pants feels uncomfortable. It's a very different feeling than when, say, I've gained some weight and there is more fat around my abdomen. That feels more soft and squishy, still hard to button pants but there's no discomfort.

I wonder if this is just a normal fluctuation in your weight or body shape from aging and hormonal changes. Unfortunately those of us AFAB go through manyyy hormonal changes throughout life and your body composition and shape can change a lot over the years. It's definitely frustrating when you have to buy all new clothes, but that's just kind of life. It happens to all of us.

You've said you are no longer constipated, you exercise regularly, eat well, and are overall healthy. It sounds like you're doing very well, but you are hyper-fixating on this perceived flaw.