Thats good you have another blood test planned. Make sure you know when in your cycle it is eg if your cycle is 28days it is meant to be on day 21 (I also had one done on day 3). If you dont know what day it is in your cycle you wont be able to compare to the reference ranges correctly (there are normally different ranges for the three sections of your cycle).
All your symptoms really sound like estrogen deficiency (if you look them up).
Good luck for the blood test I really hope you get some answers.