today i had very awfully severe period pains, which i am used to as i get very heavy and painful periods but todays pain was 1000x worse than it ever has been before and i felt dizzy and very strange, i put a pad in and then 20 minutes later i checked it and there was a quite large fleshy lump with black blood around it but no other blood. this was not a blood clot as i am used to them. and since that happened earlier i have had no blood yet and i am feeling very sick and dizzy, this is not like my normal period and i am very worried. can you suggest what it could be?