I suffered a concussion a few days ago after a major fall and blow to the head. I am having intense headaches or headache since it hasn't really stopped.

The pain is sooo intense. I also suffer from migrains, and ice pick headaches as well as cluster headaches. I am used to having them. What I am worried about is meds. The pain is very intense, Usually when I have a headache I will suffer through without any medications. I feel like I need something now it's so bad. But I am worried about my other meds. I am taking lithium and cannot take acetaminophen or other NSAID's with it, it increases my lithium level too much. I am also taking Zyprexa which I only started a few weeks ago and Oxazepam was added yesterday for sleep. Haha uggh what can I take? Any ideas? Tylenol with codeine gives me terrible rebound headaches, and Tylenol alone does nothing.

Or anythting I could do, I don't know heat ice, something. I know my neck and back are pretty bruised.

I hope this does not last too long