Topamax and Crohn's

I have migraines and crohn's disease. I was having a two year remisssion from my crohn's when my migraines started getting unbearable.  My doctor put me on 50 mg topamax a day , which was great for the migraines, but 2 weeks after being on topamax, I started a flare-up of my crohn's disease.  At first, I didn't connect the two , but after taking both prednisone for several weeks and having a remicade treatment, I can't stop the flare-up and I am starting to think it's the topamax.  Did anyone ever experience anything similar or does anyone have both illnesses?  I would appreciate any help on this because I don't want to give up topamax but I want to get rid of my crohn's.

I actually use elavil for my migraines it works bery well.  They tried to switch me to topomax and it caused me to have suicidal thoughts.  I immediately stoppd the topomax and called my Dr he had me just go back to how it was before with the elavil.