Ultra Sound Revealed Thickened Endometrium Of 16.37. I Am 59

ultra sound revealed thickened endometrium of 16.37. i am 59 and menopausal. i have had one infection after another, from abcessed teeth,reocurring upper respitorial infections, now a vaganal bacteria infection. I have been on antibiotics for 8 weeks. Finally respitoral infection has cleared, but I feel very fatiqued. I have experienced a severe backache for several months. Could antibiotics contributed to this condition? Could this explain my backaches. OGBYN is performing a endometrium biopsy in two weeks.