Headaches

I started getting bad headaches about 5 and a half weeks postpartum. I'm now 6 and a half weeks and getting the headaches daily. I'm drinking plenty of water and trying to get enough sleep. Also taking Tylenol to make them go away but they keep coming back. Any idea why I might be getting the headaches?  I was induced and had an epidural and an episiotomy if that might have something to do with it. Please give me some suggestions how to get rid of them.  I'm tired of living off pain meds.