Yeah UC remissions makes you overthink easily over any type of food or situation you are getting in. I also got from being a highly social and active guy to a pretty unsocial and not so active guy. Though I could never really find a permanent solution. The one good way I found out was to drink a big banana/mango smoothie 1 hr prior to going out with friends or at any event. The one magic thing that kept me full for hours and I didnt have to worry about gas/toilet. Also if I had to eat at a club/restaurant I made sure I wasnt the guy who ordered stuff and I only ate very tiny portions. I know it sounds dull but I could sit back and enjoy talking. Most of my anxiety came from the pain I'd suffer if I eat something wrong or what if I loose lot of blood again or if I lost my muscles again and so on. They all just start to develop. One bout of UC puts you in a home coma for days/months. You dont feel like going out. I used to count the hours watching Netflix all day or reading and an hour of indoor workout. I never really found any cure , no amount of meditation or exercise could stop the anxiety or anger inside. I guess its just the overuse of steroids. Hope you find this helpful and I hope you fare better than I could . Good luck 👍