Autism

To make matters worse I'm crying over every little thing, and then sometimes crying for no reason

To make matters worse I'm crying over every little thing, and then sometimes crying for no reason

I used to have these problems before I got my SSRI, taking double Max dose and it helps against crying and hurting myself. No recommendations from my side, but its better you see a doctor and they should prescribe you if needed.

I red that autistic people often have imbalance of serotonin- too low in brain and too high in blood. 

Sounds as if you need a GP to see if your serotonin levels and dopamin levels are ok. These can trigger low mood and emotional swings.