@LetsBeSensible sorry to hear about the relapse...did you say that you are expecting your period?
This is always the worst time for me.
Last time was the worst and I realised I'd been filling myself with histamine in my food - avocado, spinach, decaf tea and coffee, mature cheese, kimchi, kefir, soy sauce, lots of slow cooked meat stews etc and leftovers from the fridge.
@MillStone if all else is consistent, is there another possible trigger?
I am controlling all of these variables - physical activity (steps), sleep, stress (in that it is predictably high on my work days and low on the others), rests for 30 mins morning and afternoon.
In the absence of (known) hormonal factors then the only other explanations are something entering the body - infection, food?