I had terrible headaches for awhile, always have had and then got diagnosed with migraines a few years back oh how fun they are.
Acupressure may help, I know there is meant to be a pressure point in your ear lobes that helps with headaches, and also your big toe. Massage is awesome. I had a massage late pregnancy but unfortunately at the time I wasn't sore so it was kind of meh. Where as if I was sore I would have benefited from it alot. Try and rest as much as possible and keep hydrated, put a little bit of lemon/lime into your water it will help your body absorb the water. I lived with about 5bottles of water about the house so wherever I was I had one on hand. Eating right helps, as does panadol apparently.
I tend to sleep mine away if possible sometimes that takes 2days.