I had it, characterized by low body temp. Will cause most of what you have. I had it it caused all kinda of WIERD things. I thought I was going nuts, but I got it under control (somehow). Take your oral temp starting 3 hours after you wake (3 times a day) So if you wake 8 am, check at 11, 2, and 5 pm. I bet you average below 98.0, just a hunch.