It's just unconscionable that you've not been given any kind of sleep aid.
No wonder you''re feeling so hopeless. Hang in there knowing that your diagnosis will be coming soon.
No sleep is bad enough. The pain of a headache besides would drive any person insane. There's no way you can be thinking in a positive way when you feel like that.
I'm sure my headache has never been as bad as what you're experiencing, but it did keep me sleepless for a long time, but fortunately I had a sympathetic MD. Also a sleep study which showed alpha wave intrusion due to pain. My sleep doctor put me on ambien and I've been on it for a year. I have the headache to some degree most of the time.
Hope after diagnosis and treatment, the disability won't be necessary.