Beer would cause a massive MCAS response in people with histamine issues. It's not a herx, it's a histamine response. If you liver is overloaded, then it could make you feel extra crummy in that way as well. I hope it was a nice dinner at least.
I take both burbur-pinella and Jernigan Neuro Antitox. They have not made much difference for me. I think the latter helps more than the former.
Managing MCAS (including a strict low-histamine diet) and the DNRS limbic system retraining practice did more for my neurological symptoms than any supplement has. CBD is good for symptom management.