Problem with overheating, need help!

The problem has been going on since about last April, in varying states of intensity.

I feel like I have a total full body fever, even if I'm not running a temperature. (In fact, my temperature is below normal, most of the time)

Head, chest, arms, everywhere just feels warm. Especially in my head and face though. Sometimes it causes dizzy spells. It causes excessive sweating in my armpits as well.

I've tried flax seed oil, my doctor put me on beta blockers, I've tried quitting caffeine, my doctor has tried putting me on antidepressants, and nothing has helped.

He's run every blood test available, pretty much. My thyroid has come back clean, I don't have diabetes, I'm damn sure not pregnant..

Sometimes it will go away for a while, but it always comes back.

I just need some kind of help. Maybe someone has been through this before, and they can help me. It's been almost a year, and it's incredibly frustrating. I've had to miss work because of it.

If anyone knows of some kind of herbal remedy, or if they think acupuncture would help, I don't know what else to do.