I think I might have mast cell activation syndrome and I’m really worried. 4 weeks ago I had an allergic reaction to a lip balm. Initially it was just a contact allergy and then I went into anaphylaxis. Since then my skin burns if I use makeup, skincare and I get what feels like anaphylaxis threatening if I use toothpaste so I don’t even know what I can use to clean my teeth. Other health issues are B12, vitamin D and ferritin deficiency (all untreated at the moment) and I’m perimenopausal but they can’t give me oestrogen as yet in case I react to it. If I so much as clean my teeth I get swollen gums, tingling lips and my heart races and I feel sick. I feel so drained and unwell.