Definiately call your GI doctor. When I was on Remicade, I had blood work before I started and every 6 weeks. You need to make sure they are following you,even if you need to remind them, that's okay. Don't ignore symptoms. When I had pain in swallowing it was my GERD coming on, which is common with Crohn's. But that doesn't mean you having the same, so get it checked out. Thrush isn't fun either sorry your going through so much,. Take care of yourself, wishing you health.