You know IBS and muscle tension pain could both be a result of the depression. You know the commercial that says Depression hurts. and talks about fatigue, aches and pains and the like. It's really true. The way my psych explained it with me was that there are the same chemicals in the stomach that there are in the brain and if the brain is off the stomach is likely to be off hence the IBS. I have it too. All a result of the depression. So don't look for the anti-d with the least amount of side effects, look for the anti-d that will work best for you. Perhaps stay away from wellbutrin if you're anxious because wellbutrin is a sort of stimulant, like an upper that may cause your anxiety to rise. Then again I'm no doctor. So always consult your doctor.

Love and Hugs,
Tara