What Causes Dizziness, Headache And Pain In Pelvic Region?

hey I'm am 14.I have recently been having problems in my pelvic area and i have missed my period for a good 4 months now.The symptoms that i'm getting are dizziness, headaches,pains by my pelvic area they come and go and sometimes are more 'sharper,'pain by my breasts and feeling sick.I have been looking at the symptoms online and i have come across a numinouses of times the word' ovarian cysts ' so i thought i''ll look in it,and i was just wondering if this looks like i have got ' ovarian cysts ' i went to the doctors yesterday and they said if i dot come on in the next month go back,but i think i need to find out what it is now. thank you for your time and effort and hope you get back to me as soon as you can.Much appreciated.