Help!!

So I went to my doc because I haven’t got a period since january 18 and I have been trying to conceive since October 2015 is when I got off the pill and got a period and when February 2016 I missed my period for 3 months so they prescribed me medication so it kick back start my period and now I’m having problems again I have irregular periods and since my test come out normal they don’t take me seriously all my doctor said it could be PCOS and that I’m not fertile I got referred to infertility clinic but I’m freaked out that I might have PCOS any advice has anybody gone thru something similar