Do i have a personality disorder......?

It sounds like bipolar disorder or schizophrenia to me. There's medication to help with the symptoms of both of these. The problem with the medication is when people with either diseases take it, they feel better and think that they don't need the meds anymore so they stop taking it. So go to a professional and write everything (your symptoms) down just in case you're not entirely comfortable talking to them about it. Hopefully then you can get the help you need. But make sure to KEEP TAKING the meds or else you will have a really bad downward spiral. Good luck with everything and I hope you get the help that you need.