Allergies or asthma?

Patient: I have had shortness of breath and tightness in my chest for a little less than a month. I thought it might be allergies so I didn’t think anything of it. I have tried to take allergy medication but it didn’t help at all. Recently I have noticed a soft wheezing sound at night when I am laying down. Could this be asthma? Should I be worried about it?

Symptoms: wheezing, tight chest, shortness of breath.