I was diagnosed PMDD by my Gyne and an Endocrinologist. I was on SSRI at the time and they didn't really make a difference. I wonder if undiagnosed ASD / ADHD made it harder to treat?
I also remember taking some type of tablet that made my periods less heavy, but I can't remember for the life of me what it was called. It wasn't contraception or a hormone.
I'd say Endocrinologists are the best bet.
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I never give you my number, I only give you my situation.
Beatles