This sounds horrible...how long had you worked for this organization? It smells like discrimination to me. I'm so sorry. It's just not fair to be treated like this. If you feel like yr not safe go to the er right away. It sounds like you were doing yr job and you really enjoyed it. I hate it when employers act like this. They are on a power trip and they picked you to pick on. I would seriously consider talking to a lawyer. Especially since they said yr not mentally able to do yr job. They need solid proof that you screwed up which it sounds like you didn't. Again I'm very sorry. Good luck to you and stay safe