# MCAS ‘starter pack’
What is MCAS?
See comments section on this page for several graphics on MCAS symptoms.
DISCLAIMER: I am a layperson and person with MCAS, not a doctor, and am not qualified to give medical advice. The following are things I have found through my own research and experience. Individuals' experiences may vary and efforts should always be made to find trained medical professionals to manage MCAS care. This was also largely written pre-2020 so some parts may be out of date.
Please take what works for you, leave the rest -- trust but verify, do your own research, and consult doctors!
MCAS, "Mast Cell Activation Syndrome", is (put simply) a medical issue where part of the immune system (mast cells) are 'overreactive' and cause histamine and other inflammatory processes to fire excessively, causing a host of multi-system symptoms from brain for to GI issues to fatigue to skin issues to breathing issues ... and so on (symptom list and diagrams are availble at the botton o