Tea Time...or not

I have been trying several different kinds of tea lately, other than my go to Peppermint and Sleepy Time teas. I can't drink ANYTHING that has caffeine in it.  Everytime that I have had tea with caffiene I've gotten a migraine.  Grandpa would be so dissappointed.  It appears my tea times from now on will be exclusively herbal teas and I'll be exploring those the next few months.