i'm pooh sized (3x)and would like a list of rides to avoid, or be warey of in disney world. i have small children so just wondering about dumbo and that type, as well as the rollercoasters and other types.
I have had very few problems at WDW.
Be VERY CAREFUL about turnstiles in Fantasyland, especially if you have a large bottom/belly/hips as I do. The one at Haunted Mansion is always hard for me to get through. Turning sideways doesn't work for me because I'm short (5'2") so they fit right at my hips which is the widest part of my body!
Most of the rides I just skip past them and the CM's are nice about it.
I don't do Space Mtn. anymore because I had to ride it with the lights on once after it broke down. It just isn't fun anymore! So I'm honestly not sure about the fit on that one as it's been about 10 years!
Dumbo I ride with my 10 year old son, never had a problem fitting or with seat belts. We also share seats on Buzz, Snow White, Peter Pan etc.
I did ride Pooh alone because he wanted to ride with Grandma.
I don't do the Tea Party because of the wheel in the middle. I'm just convinced it would be rubbing on my belly, but I could be wrong.
We don't do Star Tours because we don't enjoy it. Last time I did I felt smooshed into my seatbelt.
In Epcot I ride everything with no problems. In HS I ride everything with no problems. In AK (our least favorite park, too HOT!) we do Everest, Kilimanjaro and Kali Rapids without problems.
Here's a few pictures of me and my son on our last trip to WDW in May 2008. Hopefully it will give you some idea of how your size compares to mine.