Whats wrong with my mom?

My mom and I are very close and we tell each other everything. Last night she told me the last 4 times her and her boyfriend made love she gushed bleed. My mom has not had her period since she get her DMC done like 4 years ago. She has been really sick as well all the time. Her ears leek blood..but she thinks that is due to her teeth which will be pulled in 3 weeks, then she also has diariha everytime after she eats. She gets light headed alot and dizzy. She thought these were signs of cervical cancer..she also has other problems but the are hard to explain. Someone also told her teh bleding during sex could be a sign of a tubal pregnancy but she got her tubes tied 6 years ago. Any information will be helpful. Thanks
I forgot to mention she went to her dr yesterday ob/gyn and he said it was an infection in her uterus and then gave her meds she couldnt take with her other meds, after she told him she was on another med. and what it was, he still said it was fine. Then she went to go pick up the prescription and they told her what to take the medication because she could over does with them mixed.

Also when she got her DMC done they told her she wouldnt have her period anymore but if she bleeds heavy at anytime to go see her ob/gyn. So she did and I think her dr is wrong because of everything that is worng with her.