Emily Fox, I wanted to respond to this because I've had something similar going on for the last year and a half or so. My whole system just feels "upset", or "wrong". Not like itself. I've been back and forth with doctors but not been diagnosed with anything specific. Trying different things to calm it down, but can't say anything specific has worked. My doctor suggested it could be lactose intolerance, which can develop at any age (oh joy) and can produce some of the symptoms you describe.

Also, since you've said you believe you're going through the change, I wonder if the hormonal ups and downs might be affecting your GI system.

Also -- how in the world have you managed to increase your metabolism? I've been trying to do that for awhile now as the pounds creep up on me, but without much success.

Wishing you well and hoping you'll be feeling better.