Hello, Im 18 years old, monday afternoon me and my partner were having intercourse, straight after we both came he pulled out and i had instant sever pain inside of my vagina as if my womb was going to tear and fall out, i have had problems with my periods since i was 13 as i have had an addiction to mefenamic acid and tranexamic acid , since i have stopped taking them i started to have periods every 21 days first thing in the morning. I have barely been able to walk i need help going to the toilet and getting in and out of bed, and i dont no what it could be, the pain rushes through the top of my belly button down to my vagina and my legs ache aswel, i have dizzy spells and feel faint quite alot and ive noticed that i cant stop eating even if i have just had a meal, i dont no what is wrong but im really worried and as i cant get to a doctor i thought i would ask here.. please help??