LeeAnne, welcome to FlyerTalk.
This forum has indeed hosted threads on this topic in the past. If you search the forum for "obese" or "person of size", you'll find most all of them.
As most have been closed or are old, I've not merged this thread with them. We'll keep this one open, so long as members follow the F.T. Rules and Guidelines, stay on topic, and avoid personalized arguments with each other. Thanks! Ocn Vw 1K, Moderator.