My friend who is getting SSI says he was dealing with the following;

Mild Autism
PTSD
Anxiety
Depression
BiPolar

And he did take Mood Stablizers but had allergic reaction hence how he got SSI.

Also I know there are people who have SSI without taking pill pills and use other methods but everyone here and elsewhere even some laweyers here in California have said THE ONLY WAY TO GET SSI IS TO POP PILLS.