I have not seen a direct connection between mold and amenorrhea, however that’s not to say that there isn’t a secondary link. Mold can disrupt our gut microbiome balance which can impair serotonin synthesis. Serotonin, as you may be aware, is a neurotransmitter that can affect the brain and hormone cascade. And we know that serotonin plays a stimulatory role in the brain for the synthesis of Gonadotropin Releasing Hormone (GnRH), which makes our sex hormones.
From a nutrient perspective, serotonin is also made from a series of conversions beginning with tryptophan, an amino acid protein. You did not mention your type of diet, but does it include enough animal protein? Are you digesting and absorbing your protein with enough stomach acid? Gut health masterclass will help you troubleshoot this.
The conversion from tryptophan to serotonin also needs nutrients: iron, B vitamins (especially B6), copper, magnesium. Again, are you eating a diet that provides these nutrients? Are they optimal?
So to summarize, dysbiosis (from mold or other causes) & nutrient deficiencies can impair serotonin production, which can affect the brain-hormone cascade. Also, you mentioned that your face gets red and itchy at times. This sounds like a histamine reaction and gut dysbiosis can affect the DAO enzyme needed to break down extracellular histamine. Again, we need a good amount of B vitamins to break down histamine.
A trial with 50mg of 5-HTP (with B6) support twice daily to begin (morning and afternoon) would be an interesting test to see if it helps. Of course, please speak with your practitioner as 5-HTP is contraindicated in those who are taking antidepressants or other medications that might directly affect serotonin synthesis or uptake.
Hope this helps!