I feel terrible

I am highly doped up and medicated and I can barely think straight. I'm paranoid and frightened and feel like hurting myself. I think there is someone after me and even though I know that it isn't true, I keep having flashbacks to my time in my hospital. Someone threatened me online and my paranoid nature took over. This person lives in Oklahoma but what if he has friends in Massachusetts? After the Gabby Giffords shooting and the Norway massacre I take right-wing threats very seriously.

This is the thread where I was threatened. I called someone a troll for trolling and they said that they would hurt me if they met me. I told the person he was crazy for threatening me and he doubled down.

http://www.actionfigureinsider.com/forum/viewtopic.php?f=23&t=22512

I am terrified right now and feel like killing myself or at least hurting myself. I'm not supposed to hurt myself because of the shunt in my head (if it gets loose I could die) but I'm having trouble focusing on anything else. I think I'll take some more medicine but I feel awful. I don't know what to do.