Drinking tea

Jessica
Hi ladies, 
I'm a big tea fanatic, and while I have cut out caffeinated teas of any sort, I still enjoy several (probably 8) cups of herbal tea a day. Typically, I drink peppermint... Has anyone noticed any side effects from drinking tea? I have been having severe gastrointestinal problems (MAJOR digestive cramping and diarrhea) this past week. I am just entering my 6th week. I read a small blurb that said drinking a large quantity of peppermint tea interacts with pregnancy hormones and can cause these types of symptoms. What sorts of herbal teas do you expecting mamas enjoy out there?