Thick tissue findings on endometrial biopsy

I am 38 yrs old.  I have had clock work cycles since my BTL (10 yrs ago) without hormone replacement.  About 2 years ago my periods became heavier, with cramps and clots, but remained regular.  I had a period this year January and February.  March, April and until the end of May (periods are normally at the beginning of the month), no period.  June 21, I started bleeding again and have not stopped since.  My blood levels have been effected and I am now anemic. I had a ultrasound that showed my endometrial lining as 16mm.  My uterus is enlarged.  I had a endometrial biopsy done in which the physician was "shocked" by the amount of tissue and is "very interested" in seeing the results.  I am in a holding pattern now.  Waiting for results is killing me.  The physician said not to worry.  My Grandmother had uterine cancer and a hysterectomy.  My mom had early menopause.  What are my differential diagnoses?  

[Cherie762]

please read up on a condition called andeomyosis, your symptoms fit it..Im very sorry your dr seems to lack compashion..its difficult to be told not to worry when its your health!  I hope things improve soon..has your dr suggested a d and c?  it should in theory help w the bleeding unless my idea of andeo is correct..its very hard to speculate as to what your possibilitys are,,we are knowlegable but not drs on here,,can advice guide but not diagnose,,MH has a wonderful tool called a symptom checker..why not give it a try its on the right of this page easy to use many help relief some of your worries.  if your dr continues to put you off do please get a second opinion soon,,,are you being treated for the anemia?