Very painful headaches in first trimester...help!?

I had that for days on end..I am 16 weeks now. I only took tylenol and rested as much as possible. I was also told by my doctor that you can try to put a cool damp cloth on your forehead or the back of your neck and always lay with your head elevated.Also, if your comfortable with caffeine, they say a can of coke can help when take with tylenol. It is all from the hormones, it should fade away soon, and remember if you have any anxiety over it you should call your doctor, they may have more advice. Good luck