For the hypercalcemia, take vitamin K2, the MK-7 version. We need K2 to get the calcium out of the arteries and to the bones. Our ancestors had K2 naturally when animals (cows, chikens) were on pasture. Here is a reference :
"it has been reported that the reason for hypercalcemia rather lays in a vitamin K2 deficiency"
https://www.sciencedirect.com/science/article/pii/S120197122030624X#:~:text=However%2C%20it%20has%20been%20reported,et%20al.%2C%202020).
For the brain fog, wasabi will erase it. Here is a reference:
Article from Psychiatrist.com :
"Wasabi May Offer A Spicy Solution for Boosting Brain Power"
https://www.psychiatrist.com/news/wasabi-may-offer-a-spicy-solution-for-boosting-brain-power/
When I start realizing that I am having problems with name/number recall, I have a small amount of wasabi that I get from Eden Foods: https://store.edenfoods.com/wasabi-powder-japanese-horseradish/
It seems pricey at $8 an ounce, but it lasts for weeks for me.
Wasabi has been scientifically shown to help memory. It is actual wasabi, not the fake horseradish stuff that is in Asian restaurants. It comes as a powder in 1 oz containers and you mix a small amount with a tiny amount of water to make a paste. I usually mix the paste with a salad dressing, like Marzetti’s, and put on bread with a cheese sandwich. It is hot by itself but edible with the salad dressing and cheese. For me, it does clear the “cobwebs” from the memory bank.