I usually get one of two kinds of headaches.

I get vasospam headaches. These are usually in my right temple and feel like a knife stabbing my temple. They are due to the muscles that wrap around blood vessels that get stuck in a spasm. They can stop me in my tracks. They tend to only last a minute or so but also appear in clusters. I'll have them frequently for a week or two then not at all for a month. Nothing relieves the pain. i just have to wait them out.

I also get what I call Mud headaches. My head has a dull ache and feels like it is packed with mud and my thought processes are slowed like they are stuck in the mud. So, I call them Mud headaches. They often follow a poor night's sleep. Sometimes, a simple glass of water helps. Other times, I take ibuprofen, with a glass of water. They could be due to a bit of dehydration.