What unintended ADHD medication were you taking before you realized?

Recently got diagnosed with asthma and just have an albuterol inhaler till I can see a specialist in 4 plus months, haven’t been able to get an ADHD test despite my doctors referral, just so you have a preface for my story here.

On days I work toward my goals I generally start with a 16 oz doubled tea, gives me stimulants which I can’t get at the moment and I generally am able to focus on my tasks for 2 hour stents or so. I have some days though that despite getting rest and having a dose of caffeine I get real low energy around my first hour. Recently, during one of these moments I was trying to take a break and realized my breathing was quite shallow and I was somewhat short of breath, so I used my inhaler and I had a rush of energy and was able to knock out all my tasks with energy to spare. Turns out most of my low energy days have been actually about my low blood oxygen and the effects of having undiagnosed asthma. This has happened to me several times now and it blows me away each time. I think to myself “So this is how normal people breath and get so much done.”