I am a 53 year old women, I have been on bioidentical hormones for 3 yrs, have had no cycle for over 1 year, 2 mo ago started having breakthrough bleeding. Had an ultrasound done (endometrium measures 7.5mm), biopsy = no cancer. Last TSH went up to 25.5. Taking estrogen/progesteron 50/50, testim, synthroid 150 mcg. It is safe to stay on these hormones? What would happen if I stop taking them?