Wow what a miserable situation in which to be!!!! Now, I know they are your friends... can you fully trust them, though, if their jobs are on the line also? Did the information about the guy wanting to get rid of you only from your friends?

One of the problems is that when we have mental unwellness, we can more easily suspect and believe bad news.

First, you need to document any thing you can about how you are being trated vs how others are. Write down what your co workers told you. Keep a log, keep it private. In the log note the date, time and people involved.

If you do have info that denotes illegal actions, then you can contact the higher ups. If you are THEN fired, you can win a case under the Whistle Blower Act.

It's not fun. And it may very well be beyond your ability to cope. If this didn't happen in so many workplaces today, I would encourage you to look for another job. You might still want to have a few irons in the fire, so to speak, anyway.