Past Overtraining causing mental issues.

10 yrs back I use 2 train very intensely w/o required rest & diet. Later on my full body muscles become very thick. Training even for 5 minutes would make them so hard and I couldn't train any longer. I then took rest for 1-2 years and then started to perform light weights but problem still remain. This problem is still present. Overtime my ability to focus started to reduce. Right now below are my problems 1. Cannot focus on anything 2. No consciousness of self 3. No awareness of surroundings 4. Feel disconnected from self and others 5. Sometime feel out of balance 6. No interest in anything 7. Feel nervous 8. Hazy and blurry vision 9. Short term memory issues 10. Depression I have that much consciousness that I understand i have some problem. I am not sure if my overtraining has caused this but may be its the culprit. Can some one help in correctly diagnosing the problem? Lots of thanks in advance.