PLEASE HELP!! SEVERLY CONCERNED!!?

ok well i have SEVER cramps when im on my period...well i dont know if this could be whats wrong, but i just feel soo bloated and my ovaries hurt sooo bad! they have hurt since june everyday!! i cant stand the pain anymore...it makes me sick to my stomach...and my mom had endometerosis...so what are my chances of getting it? and what are the signs of it...im really scared, and im going to my 3rd doctor on thrusday....hope she can figure out whats wrong! thank you..