I have asthma, and I think strenuous exercise is good for my lung capacity long term, but makes me feel terrible the next day or 2 days after. It's really diffi

I have asthma, and I think strenuous exercise is good for my lung capacity long term, but makes me feel terrible the next day or 2 days after. It's really difficult to figure out what causes my symptoms and what makes me feel better. I wish there was a chip that monitored hormones and immune system factors, etc.