Do you have experience with some kind of hormone imbalance?

Have you or someone close to you had to deal with a hormone imbalance?

If so—

What kind of symptoms were there?
How was it diagnosed?
How was it treated?
What was the effect or result of treatment?

and…

For how long do you think it went undiagnosed before you or somebody caught on?

This question asks for personal experience and not links to web pages. Thank you.

Tags, as I wrote them: medical, hormones, hormone imbalance, endocrine system, endocrinologist, health.