Hi Jason

Welcome.
We're not doctors here so we can't offer any reliable medical advice, just support.
That being said, what you're describing sounds very much like something I had experienced. I, similarly, was treated for asthma. Then I paid close attention to what I was feeling and realized that I was probably experiencing something gastric rather than pulmonary.
I mentioned this to my doctor and BINGO! turns out that after some further examination I was found to have gastroesophageal reflux. Never did have asthma. Which would explain why the asthma meds did nothing to alleviate my symptoms.
If you don't see any improvement in your symptoms, you might want to explore this avenue with your doctor.
In the meantime, try sleeping with you head elevated and avoid any foods that might induce heartburn. It can't hurt you. Might help.
Hope you feel better soon.