Asklemmy

your body is super able to heal itself (except ur heart read below 1) idk much about asthma but marijauana used to be used as an asthma treatment wayy long ago because it's a natural bronchodilator.

you first should figure out what damages your lungs about it. distillate sublimates at a low temp (more below too if you care 2) so you shouldn't worry too much about heat. next is acetates. if you heat an acetate from a street cart you could inhale ketene gas which is toxic but thats been hardly proven outside of extreme high temps with thcO.

you will not have long term issues though and if you don't use everyday ur already better than a lot of folks.

1 the heart does not heal naturally and i mention this coz some drugs (not pot) are super cardiotoxic (its cocaine) and prolonged use will cause an early heart attack. and thats where actors and comedians go.

2 distillate vapes lower temp because its decarbed unlike wax that needs a higher temp. simply put marijuana isnt active normally and needs some kine of chemical change such as combustion (smoking) to make it active. or decarboxylation (flower in the oven) and thats how folks make edibles.

im a big anxious stoner but im also generally interested in toxicology though im probably not much older than you.

TLDR dont be too scared but once you try it don't be too careless lol both ways are bad (except being careful is much less damaging than careless)