I have chronic anxiety, and anxiety can manifest in the ways you were describing with
head aches, general aching all over, problems with
focus, etc. Did you ask your doc about early menopause, too? I'm just thinking, because the two can have similar symptoms. If anything, if you go to a good therapist, they should be able to help you out with it.
You should not feel alone. I've struggled with anxiety and panic attacks starting at 14 years old, and I am now 28 years old.