My endo actually added progesterone after my surgery, had me on Provera first but I was having some issues so I was switched to Micro p/prometrium and I've been good since. Imo I think endo's all to commonly take the safe route as just prescribing us similarly to menopausal women, mine did similar, prescribed me half at first and I had no energy at all then per my request and through watching my Labs increased my meds and everything come back to normal. You sometimes have to speak up for your own well being, also from hat I've heard I'd prob look into another hormone than Premarin, as there are far better med with less risks, and JMHO