Just before I got into the fandom, I dropped 150lbs which took my from "very obese" to "just overweight". Over the years, I've gained most of it back. I used to be extremely self-conscious about my body, and I still have some issues around that, but I've also found a lot of acceptance from furries.

If you go to cons as a heavier person, you'll see a lot of conventionally attractive people you might feel inadequate around, but you'll also see a lot of people like yourself. You're also likely to encounter people who find your body type more attractive than those conventional hotties.