Is it seasonal allergies if I get a stuffy nose at night? Can it make your chest feel strained? I have anxiety and focus on my breathing too much like something is wrong. I take a Claritin (loratadine) year round so far and has helped some.

Seasonal allergies. Mean having the problem/symptoms during certain seasons, usually related to different pollen seasons,and can also be present all year round if having a trigger indoors as well, or maybe not allergies at all, just chronic inflammation of the upper airways,. Yes nasal inflammation / allergy can affect your lower airways too causing feeling of chest tightness.Check for allergists around you.