Please help!

I have been to the doctor and hospital multiple times and nobody can tell me what is wrong.  Everyday I wake up with a headache and feeling: Light headed, dizzy, nauseous, and extremely hot.  So hot I can just be sitting there and sweating.  It feels like an internal heat, if that makes sense.  I don't always feel hot to the touch, but it feels like I am burning up internally.  I generally feel "out of it".  It has gotten to the point where they have recommended I not work, drive a car, etc.  I have had a CAT Scan and was told that it came back normal.  I've also been tested for Diabetes and Anemia, both also came back completely normal.  The last time I visited the hospital, the doctor on duty told me it sounded as if I was describing how it feels to be dehydrated (which is similar to how I feel) but when they ran tests on me, I was nowhere even close to dehydrated.  I don't know what to do!  I can't go on like this much longer!

[msnova74]

Have you gotten an auto immune panel yet?  It could be any number of AI diseases.

Also have you had a MRI?  pseudo tumor cerebri is an option

Thirdly I would keep a food diary,and check with a gastro.  Celiac, and Dietary Fructose intolerance are two more possibilities