Hi. I've been on valtrex 3 grams per day for 6 weeks. Stopped 2 days ago and been having annoying ongoing headache ever since. I was taking it as per Lerner's. But then saw someone's posts on here when posters said taking antivirals prevent your body to make antibodies. So I stopped valtrex. I didn't like taking pills daily anyway. I don't have an insurance so stopping it was a financial relief too. But did anyone experience headache as withdrawal symptom?