Sleep seems to be a big issue in relation to MCAS, it certainly has been for me. It was due to being unable to sleep and flushing/sweats (predominantly at night) that I went to the GP. I initially wondered if it was the early menopause that I was going through, lots of tests and referrals later I’ve been advised probable MCAS. Sleep is still an issue for me, any tips would be great (I have tried a number of homeopathic remedies without any improvement).