That's great news Sleuster! Thanks for posting an update. I pray he continues to improve!
My best friend died 3 years ago at the age of 36 of the same thing. Had a headache for a few days - a bad one, but she was still able to go to work and function surprisingly. She finally went to the doctor on day 4 of the headache (on a Wednesday). They ordered a test for her (a CT Scan) for the following Monday morning. She left the doctor's office that Wednesday afternoon and went home - where her husband found her collapsed on the hallway floor - unconscious, when he came home from work at 5:30 PM. She was rushed to the hospital via ambulance and died later that night. Totally unexpected and tragic. I had talked to her that morning and while she was in pain, she was still laughing and we were making plans to get together the next day.
Don't ever put off going to the doctor if you have a headache that is unlike any others you have ever had or is more intense than other headaches you have had. Call or GO to the doctor immediately.