paxil and hair loss

I had lost much of my hair while I was taking the drug Paxil for two years and I have continued to loose more of it ever since I stopped using the drug. It may have simply been my genetic time. It thinned out all over and now has developed a male pattern norwood scale type look. My questions are: is this a possible side effect of Paxil and how common? Is it permanent? and should it grow back if it is only an effect of the drug.