What could this be?

Question:

What could this be?

Okay, I have been playing the clarinet for 5 years, and just recently, when i play, my throat wont let the air throuh and it hurts to play, i can't blow up balloons either. I just can't play and during concerts it's even harder because i have to "fake" play...does anyone know what this could be?

Best Answer - Chosen by Asker: It almost sounds like asthma. I would get to a doctor and find out what is wrong. Don't rely on the advice of a bunch of random people on the internet for a possible medical problem.