Asthma symptoms after taking digestive enzyme supplement

I am 21 years old and live a pretty decent lifestyle. I never had problems like this before. Anyways, some prior background experience is I had asthma when I was around 2 years old and it went away. Fast forward to today, I started to experience asthma like symptoms about two weeks ago, so bad that I had to get an inhaler from a doc. It started after I wanted to try out the supplement Betaine HCL with pepsin.
The first day I took the supplement, nothing happened. The second day during the time I was about to sleep, I would start noticing harder to breathe symptoms. The next day I Woke up, I felt like I was dying from lack of oxygen.
Keep in mind I am average weight and I weight lifted before this happened. After two weeks, I stopped taking betaine hcl because It's so hard to breathe. Please let me know what is going on. Tweet