I'm sorry you're having that kind of reaction. What are you mixing the questran with? I know if I can taste the questran a little too much, it can make me gag a bit and feel uneasy for a while. Maybe find something that mixes better and helps get rid of the taste, if that's what is causing it.
Otherwise I'd imagine you're doing the right thing by taking it with food. I know it's no fun to take, but it does work, so I suffer on through! LOL
Diagnosed with mild Crohn's Disease 2/06 after sever GI bleed. Has been suffering since 1998. History of rectal fistula and gallbladder removal. Currently taking Asacol and Questran.