My brain feels like it is cramping. Right side of my head, starts behind my eye and goes through the entire right side of my brain down the back of my neck . Feels like it s a cramp. Extreme pain for a few hours then subsides to a dull, deep soreness in my head. Just like a calf cramp will remain sore after cramping for a few seconds. But this cramping feeling lasts a pretty long time. It started back in the summer of 2010. Got a cat scan. They didn t see anything. But today was the worst it has ever felt. Accompanied by numbness in face and hands as well as nausea .
You are describing classic symptoms of migraines headache. This kind of headache usually only affects one side and can be associated with blurred or unusual vision changes, numbness, tingling, nausea, avoidance of loud noise or bright lights. CT will be negative. It also often lingers for most of the day and sometimes for multiple days. Common medications like ibuprofen, acetaminophen, naproxen, Excel Chat Doctor.  Sometimes people need migraine specific medications, like Limited, Coming, or Max alt. People that have more than three per month may require preventative therapy with a daily medication like Tokamak, or propranolol. Often there are triggers for migraines, like nitrates, cured meats, chocolate, and many others. Good luck.