im very confused lol

i suffer with anxiety and most of it is social so when im outside in crowds i feel panicked and it affects my breathing and it feels almost a chore. even when ive only walked little distances i can get easily out of breath and feel very hot. i had a doctor while back thinking i have asthma but i never took the inhalers as it was only mild
but its the breathing part thats bugging me, when its hot i find it difficult to breathe or doing something exerting, also with the unable to breathe part i notice i have normally mildy blocked sinuses too and my nose is kinda runny. even sitting right here i have to breathe deeply.

i dont know whether its bad anxiety, asthma or a sinus problem??

clueless yes, need help yes :p

also feels like someone is sitting on my chest and i cant get them off!

thanks guys