I had cyst two times before those were cured i had birth control pills tho distroy the cyst for 4 months ..i am unmarried..i am 16 yrs old ..after tht 3 momth fyn but again lengthy periods twice with pains went to doc said had cyst in period but went away with the period thn okay for 2 month..in tht mean time i had gingko biloba for my uncontrolled migraine by doc which caused me bleed nd my period to be length for 27 days with pain left side nd heavy abdomen..aftr tht stopped tht medicine the period also stopped but again after 5 days period for 10 days with pains nd severe cramps..pain in left side couldn'twalk more thn 15 minutes pain increases..thn after 8 days again for 16 days ..thn stoped for 15 days but in these 15 days had seripus left side abdomen painlower back nd theigh nd leg pains. Now it has started with severe cramps..wht can be the reason?