Does this sound like asthma?

I was diagnosed with panic disorder and I'm doing Cognitive Behavior Therapy, but I'm starting to think my breathing problems could be asthma. I have trouble doing the straw breathing and breath holding in CBT. I always feel like I'm out of breath even when just sitting, but when I actually try to do stuff like clean or work out, I have to gasp for air the entire time, then I'm lightheaded and sometimes hyperventilating afterwards. I was diagnosed with asthma 5 years ago but it felt like it went away so I quit using my inhaler. Does it sound like I have asthma again or is that just typical symptoms from my panic disorder? If it sounds like it's asthma, I definitely want to get an inhaler before I start doing the difficult panic inducing therapy.