After Stopping HRT

I am a 65 yr old female who recently weaned off of hormone therapy after taking it for 10 years. I was taking Activella. I felt good while taking it, but last year had to have an endometrial biopsy, due to some spotting (it was negative), and then this year I had two benign cysts in my breast.  Now, that I have been off HRT for 3 months, I am having a few menopause symptoms...hot flashes mostly. I usually call them "warm flashes" because I don't sweat profusely, and they go away quickly.  I have not had any anxiety attacks, which happened before when I tried to wean off of the HRT.  But, one thing that concerns me is some abdominal aching that has started.  I have had sciatica in the past, and the doctor told me at that time it is common to have soreness in the abdomen on the side that is involved with the sciatica. I was just wondering if anyone who has gone off HRT ever had any soreness in their abdomen.