Update.

I just saw my boss, who completely grilled me, said my doctor obviously doesn't know what he's doing, said I don't know what I'm doing and told me to leave. I burst into tears during him yelling at me, he then proceeded to call my supervisor who I reported my injury to, yelling and swearing at him, wondering why he didn't tell me to get the F out as soon as I reported it to.
This was all in front of 4 other employees. I'm completely humiliated..