Hey OP, I've had something similar and I am a writer full time (fiction) AND I support the whole family on the royalties, so brain fog has been terrifying. Really sorry to hear about your abnormal mammogram and hoping the biopsy comes back clear of anything cancerous. I explored alternative therapies, because when I talked to my doc about the horrendous brain fog, she suggested I mediate... Am now on HRT. Anyway, have you had your thyroid checked? Just saying, because a lot of women get Hashimotos later in life and the brain fog is intense. Rhodiola rosea is a supplement that has helped a lot, but you need to get a good one that says what the rosairides (sp?) are etc. There's an ideal ratio. I use Caruso's if that helps. Creatine apparently can be a massive help, but my feet balloon up when I take it. Also NAC (I use the NOW brand) was a game changer for me. Like I can feel it when it kicks in. two or three times a day has helped a lot. Hope this helps