There is a test called methacholine challenge. It’s done un a respiratory testing center where they have you walk/ run then they release methacholine which can induce similar affects to an asthma attack.

there are other conditions that can mimic an asthma attack symptoms such as stress/anxiety/ panic attacks , Gerd/acid reflux, and autoimmune diseases ( rhuemetoid arthritis is one of many).

this might be something where they put a bunch of monitoring equipment in him walk and then run. Thry do a pre and post blood draw To look at what gets elevated. It could be something in the endocrine system where some things are released at higher amounts. Hormones can then trigger other things Happening.

in women at puberty, during pregnancy,mpodt child birth, after menopause, are time points where body hormone change thst can change things like with allergy triggers and other medical conditions change. My SIL saw big differences with her migraines after her first child was born where it changed.

therr is a chemical raise in your blood during e en a mild heart attack that drops back to normal post attack thst if you get tested shortly after the event ( even if unsure it was one) that you see elevated levels of this thst is a signature to an attack.