I have severe chronic endometriosis.?

I had my fallopian tubes removed 4 yrs ago when they 1st discoverd it.It had ravaged my tubes.They recomended a complete hystorectomy.I have since found out that my uterus is hugely enlarged.my uterus lining is extremely thick.I have a uterus that is tilted to the back and over to the right with multiple cysts on my ovaries.every month I notice that I get weaker and weaker...sicker and sicker.Over 4 yrs it has progressed to the point that I have 1 good week per month that I am not swelled up like I am 8 months pregnant,hurt severly,have bowel trouble and only poop normal after I have started my period for a cple days.(I think the huge uterus keeps my bowels blocked off).the rest of the month I am in this kind of condition.I feel myself getting weaker and weaker.my immune system is down very low.I catch any kind of flue,virus,etc...that I come in contact with,I keep dehydrating vey easily,I am so weak and tired all the time that I sleep most of the time.is this disorder causing all of these symptoms?can it eventually kill me?