(Paging Dr. J and Dr. House) Why do I have such low energy?

Sorry in advance for the book length post.

Hi folks. I’m male 24, 165ish lb. and I eat well. Lately, I’ve been super tired for no obvious reason. I thought it was anemia or something, went to the doc did some tests…. Nothing. Everything came back peachy keen. Not mono, not thyroid related. Everything was healthy normative A-O.K. No weight gain, no weight loss. Doctor says it’s one of two things: Depression (statistically most likely and the better of the two options), or something rare and weird.

I have been depressed in the past and don’t feel like this is depression. My life is pretty damn good right now, and I’m happy. I don’t think this is mood related, it feels physical. I’d like to add that I’m not feeling stressed about anything either, school is going really well.

Under my eyes is a deep deep purple. I am fatigued after drinking the morning cup of coffee. Cuts and bruises take longer to heal. Basically I feel like crap all the time, but only physically. I’m laughing, smiling, happy.

I’m sleeping well but some days I wake up for a while and then go right back to sleep because I have no energy whatsoever. And then after that I wake up tired. I don’t believe I have any form of sleep disorder, I’ve done a sleep study before and I’m a pretty freaking normal run o’ the mill fellow. I don’t get a ton of exercise but, I walk and such (light yoga occasionally)…

Oh and one other thing I have bad wrist pain due to arthritis. I had been using over the counter pain meds but stopped that just in case it was one of the factors, plus OTC does pretty much nothing for the pain.

Any ideas? O_o Thanks lovelies.