Asthma is a catch-22 situation - GERD can certainly make asthma worse, but asthma medication can worsen reflux. In particular the LABAs (long acting versions of ventolin reliever inhaler) has been proven to relax the LES. So if your reflux annoys your asthma and you take more medication for that you can enter a vicious circle.
For me, my reflux doesn't get to my asthma, so my chest physician allowed a complete change in inhaler strategy to try to prevent any interplay between my asthma meds and my reflux.
New stuff: GERD, Recurrent cystitis/Overactive bladder
Lifelong stuff: Food allergies/intolerance, eczema, asthma