Headaches

I've been really struggling with headaches for the last two weeks or so. On Friday the 13th in the afternoon, I got a terrible sinus headache that was probably a migraine (pain all on one side). It never went away until Saturday the 21st and most of Sunday. It's back. I had the same sinus/migraine pain when I was at the end of my pregnancy. I don't know the cause. I've heard some pretty consistent possibilities though - hormones, lack of sleep, dehydration, and the weather. Another suggestion that was given to me was yeast. These all make sense, but at this time, I'm guessing that mine are the first three. So what am I doing to get through the days?

The Neti Pot gives me about an hour without pressure. On Monday, I bought a natural hot pepper product called Sinus Buster from the health food store. It gives me a little more time. I was using extra strength no name ibuprofen until Monday (every 4-6 hours) but now I picked up some regular strength Advil Liqui-Gels and am using those. They seem to be working better; I don't have to take as many, as often.