I also have RA and had it for most of my life. diagnosed as a kid and then went in remission for years and back again after my last preganancy,but now it is in remission again(i'm 49) i take 200mg of plaquenil a day and even though dr says i'm in remission i still get aches and pains once in awhile. i try to watch what i eat,i find that if i eat greasy foods or really rich foods my fingers will swell and my knee will stiffen up. the heat does help and definetly use the hot tub. like the other poster said take some breaks and sit and take in the view,thats one of my favorite things to do at WDW.