Could you get asthma by eating too much?

Yes. Reflux ("heartburn") is a known consequence of overeating and a known asthma trigger.
Ridiculous Response. I don't care what anyone says, eating too much does not cause asthma. It can cause or worsen reflux. But is does not cause asthma. Reflux is a known cause for cough.....Not for triggering asthma. Nejm published data supporting this recently.