1st trimester question !? Help!

Ok so this may be a bit TMI but I am 5 and 1/2 weeks pregant and three years post rny. I have been having wicked headakes and diareaha form the last three days or so. I do ok durring the day but wake up at like 3 am with the runs. Is this normal ?? Sorry so gross just worried had miscarage in the past. 

My OB told me that the things to worry about in the first trimester are fever, cramps, and bleeding; otherwise, you probably don't need to worry too much. If in doubt, though, call the doctor's office and ask-- they may be able to get you in sooner if they think there could be a problem.

Are you eating anything unusual? My stomach was very touchy at first, no bowel trouble but I was queasy all the time. Also make sure you're drinking lots of water.