Grave's?

I have been to the moon and back trying to figure out what's wrong with me. Here are my symptoms:

Sinus tachycardia, short PR, ST depression on EKG

Tachycardia always - in the sun, it gets as high as 170. Right now it's 112.

15 pound weight loss in a few months without intent

New onset of UNCHARACTERISTIC anxiety and anger (of course, doctors jump to point out this is purely mental aaaaand see a shrink)

I eat 2300 calories a day and don't gain a pound

Pretty bad tremors and involuntary muscle movements? Almost like partial seizures.

TSH in October was .71, then .89 in February; free T4 was 1.5

My hair is falling out. I thought maybe Lupus, but my ANA was negative

All that's been found so far was the stuff on the EKG and a pineal gland cyst (5mm) in my brain. Thanks for any input.