Headaches, anxiety, insomnia, brain fog, hives, and nasal congestion. These are just a few of the symptoms of mast cell activation or high histamine.
Histamine symptoms are more common in women and often track with the menstrual cycle, occurring when estrogen is high at ovulation and about a week before the period.
More than twenty years ago I discovered something: When I stopped having dairy, I stopped having period pain.
