"started on manestein 24 fe to help balance out my cramping &amp; the heavy bleeding during my periods. which it did help. a week after i started my next new set i started to have the bad feeling in my upper stomach like i have been doing tons of sit ups non stop. so i thought i probably moved funny or something it&#039;ll go away. well a couple days went along &amp; it got worse. it bwcame more intense &amp; sharpe stabbing pains &amp; it extended into my back as well. i couldn&#039;t lay on my sides nor even when i drove in a vehicle any bump nor turn it hurt. i knew it was time to go to the hospital. when they checked me out they said i had a blood clot going to my liver which was cause by birth control. becareful it might not be for you."