estrogen question

i had my hysterectomy on october 25th. lately i have been getting night sweats, and i got my estrogen checked. it says i have 124.7 pg/ml of estradiol. but when i look this up, it tells me the normal amount for various phases of my cycle -- but since i don't have a uterus or periods, how would i know what phase i'm at? that is, how do i know if this number is high, low, or right on the mark?

My doctor goes by my symptoms. Hot flashes and sweats were always an indication I was low on estrogen. When I took the estrogen it fixed the problem. Your doctor should be able to help answer your question and your need for hormones.