Well, I started feeling this after I started a work out regimen. And I was going to the gym everyday and I was sweating a lot. So there is a possibility of dehydration I suppose, but what really through me off about the MD is, she said she was a Neurosurgeon prior to being a MD assistant. And she said I was lucky because she knows a lot about the brain and growths and masses. And told me if I had anything like that I would be having much more serious symptoms, such as face paralysis, gait difficulty, seizures, to name a few. But what through me off about her was when we started talking about, Ct scans and MRI's and she said that mri's use radiation, well I had done plenty of research about mri's and ct scans on the web prior to getting my check up from her, and spoken with a few other doctors and they told me mri's do NOT use radiation. So it was another reason why I questioned her credibility. After Christmas I will schedule an appointment with one of their doctors and ask for a referral to a neurologist. All I can do now is have faith in God and continue to monitor my symptoms. I guess my biggest worry is that the CT scan missed something the MRI would of picked up.