Numbness

Here's the deal.

For the past couple months, as the day/night progresses, I get a 'hot' feeling, almost an itching in my right thigh, around my abdomen, and sometimes tingling in my head. I have unknown stomach pain on my right side just under my rib cage that extends around my back. It's a dull pain that's always there. I also experience numbness in my arms/hands some days.

When I first wake up, the hot/tingling is barely noticeable. As the day goes on, this increases in intensity.

I've had 2 rounds of blood tests, 2 urine tests, CT scans twice. All came back excellent, and this is the problem. The doctors see me as 'healthy' and send me on my way. I finally demanded an MRI, which will require a wait, and had an ultrasound on my abdomen, but I have not heard the results yet.

Has anyone experienced something like this? A burning/itching in areas of the body that only gets worse at night? Any light you can shed on this situation would be fantastic. I have tried looking for hours on the Internet for answers without much luck at all.