Okay I have had a headache the past 26 hours. I'm 24 weeks tomorrow. The last time this happened, I was 17-18 weeks I believe. Last time I called the telenurse and she instructed to try caffeine and Tylenol. I did that but no help. I luckily got relief the next day so I never called back. This time I have tried the caffeine. No help. I feel like I'm abusing Tylenol by taking an extra strength every 6 hours. Any suggestions? Please? And yes I'm drinking water. I drink about 150oz a day.