I get migranes worse than any feevers I've ever had. The up side to those is that they are usually over in a day. Feels like someone scooped out my eyeballs and rolled them gently over synthetic grass, sprinkled the sockets with hotsauce and then plopped them back in.
If I don't get my heavy duty painkillers in time I spend the better part of said day leaning against a wall, or shuffling about aimlessly like the walking dead. Even sitting down results in more blood, and pain, transported to my head. My doctor wont prescribe more than 10 at a time because he's worried I'll turn into an adict. That's how badass the pills for that are.
It doesn't happen more than once or twice every other month, but I've got the lot of you beat for pain. Just saying.