What could be wrong with me?

I’ve been feeling really crappy lately, I’ve noticed a few symptoms I’ve had (and new ones I’ve gotten) and don’t know if they’re all related or multiple things or what.

* Dark under eye circles.
* Extremely pale face. (W/ tan body ..doesn’t make sense)
* Lethargic.
* Constipation
* Feeling light headed when I stand up quickly.
* Can’t sleep even when I’m extremely tired, or I have a hard time getting to sleep. I feel sleep deprived when I get the right amount of sleep. I’ve tried sleeping longer, it’s the same.
* Moles are changing colors and I’m seeing new small ones show up. (I noticed this last year, got one taken off and sent to a lab, said it wasn’t cancerous, but it’s still happening. It worries me.)

Any advice is better than no advice. I’m just curious until I can get in to see my doctor.