I would definitely agree with Garzie about
getting your hearing checked - just in case.
I would consider something else as well though - the need for detoxing. I don't know a whole lot about
living with MCAS, but I did find a site with a reasonable approach though:
https://mastcellsunited.com/2018/07/01/reducing-toxic-burden-for-the-mcas-patient/One of the things that was said a few times on the above site was talking about
detoxing the liver, which would help both conditions (Lyme & MCAS). There are several popular liver detoxes, and we have one listed at the bottom of page 2 of the "New to Lyme? Start here" thread that sits at the top of the forum.