I have had all kinds of tests done and I'm healthy. I'm always worried about something and I'm always tired. My thyroid is normal.
I have sleep apnea and its controlled by my doctor. I'm physically active 3 - 4 days a week, and not overweight.
I'm not happy a lot of times, and I just fake it to make it.
My mind is always cloudy and I find it very hard to concentrate, and remember things. Especially short term memory.

Thanks for everyone responding :)