Its can be very confusing, I started having symptoms at age 36, I was constantly going back to doctors who at first put me on the pill to give me the periods that had stopped! But they made my boobs sore so came off it. Back and to back and to for 3 years, blood test after blood test that always come back normal. The periods stopeed, hot flushes which I had to constantly go outside when at work as I felt I was going g to pass out, no sleep cos of the night sweats, and I turned into Satan, it was awful. Till one day my blood results had dropped below the line that triggered an abnormal reading. At 39 I was put on hrt and feel kinda normal again. I think even if your readings are in what they call the normal bracket they should check if they are changing as everyone functions on different levels.
I really hope you soon get sorted as I know just how our feel. Xx