OVARIAN CYST, PLEASE HELP!!?

hi, welll today i was on facebook and saw a girls status saying she had an ovarian cyst, i was interested so i googled it, then realised that the symptoms of it where the exact same as the symptoms i had been getting which i thought was just stomach cramping... i researched more and more, since my last period, which was 5 days ago, i have been having really bad pains, on and off. mostly after i pee. then it goes away.. and comes back.. it said in an article i read that if you have it severly u can also get headaches nausea and a fever, which iad all of the above yuesterday, (but i have also had ongoing tonsilitis for the last 4 weeks and hav had to go on 4 sets of antibiotics to fix it, and i am still on them now) i thought it was a side affect of that, im really worried and dont know what to do... please help me, is there anything i can do apart from seeing a GP straight away?