My husband has constant brain pain and the doctors don t seem to know what is causing it. He has had an MRI, CT Scan, tried botox, ultrasound on carotids, seen a neurologist, cardiologist, ears nose throat specialist, has tried several medications. The only relief he gets is from sleeping pills at night. Any suggestions? He is also on anit-depressants as this has been ongoing all day, every days for 2 years.