Hey guys!
I'm gonna try to keep this short. In November 2013 I started getting really really tired, I was struggling to just get out of bed. I started getting some headaches which I've never had before in my life. I went to the doctor and took a bunch of blood tests but everything was normal. It has pretty much been like this for the last 10 months with no end in sight. Some days/weeks I feel awesome and some days I feel like ****. I've had a bunch of different injuries and weird random pains that come and go. I've had sciatica in both legs since january, I've had multiple injuries in the front of my right knee, I've had pains in the back of my right knee, I've had pain in my right achilles tendon, I still have pain in the area around my left shoulder blade, I have pain in my right big toe and the same kind of pain in my left pinky finger.
Overall I just don't feel like the same person anymore, sometimes I'm struggling to just walk to the bus stop.
I also have a bit of OCD (self diagnosed) which has gotten worse during this period. I sometimes have no sexual drive and sometimes my sexual drive is stronger than ever.. In school (I'm 18) I have a hard time concentrating and absorbing information which is a big problem.
What is up? Could I have overtraining syndrome? How do I treat it? I've tried taking 2 weeks of at one point and at a few points I've taken week of but that doesn't do anything. Am I totally ****ed or is there a way to fix this?

Thanks!