For one day I have had a sore throat and a slight cough.

Today, at lunch, I coughed a few times (long coughs, not too violent) and suddenly found myself not being able to breathe in. I could feel that my airway was clear and not at all closed up yet I couldn't breathe. It was as if my diaphragm was not functioning correctly (obviously not the case but it is the only way I can describe the feeling).

I started to feel slightly light-headed and everything going on around me became unimportant and felt unreal.

After about a minute (or maybe less) I could suddenly breathe again...

Does anyone have an explanation for this?! Any ideas?