I am 18 weeks pregnant and have been getting the worst headaches/migraines for the past month or so. I get them every other day or so. I drink lots of water. Sleep as much as I can but nothing seems to help other than taking Tylenol 1000mg. My doc said Tylenol is safe but I’m having doubts. I question the safety of all medications. This is all making me miserable. On top of that I’ve been constipated. If anyone can suggest anything that would be great. I’m wondering if I should go to a chiropractor.