Thanks, i'll definitely look into this more if the sinus infection antibiotics dont work and the wheezing continues.
The first thing I stopped at was the word yellow next to mucus. Unless yours is clear, its usually a sign of infection, like the bronchitis or sinus infection your doctor prescribed medicines for. I have not, however, heard of a sinus infection causing wheezing.
Right now it could be most anything, asthma included, but I'm leaning towards a really terrible upper respiratory infection to cause the sinus problems, the bronch (or at least the symptoms), the awesome yellow mucus and the wheezing, etc.
Allergies are common in asthmatics, but just because you're developing some doesn't mean, "Hey, you have allergies? Oh, yeah, it's totally asthma."
The "white heavy air" you were breathing was probably albuterol, the same medicine used in rescue inhalers, just in liquid form from a machine called a nebulizer. The albuterol opens constricted airways, which is why you couldn't breathe. Asthma is often compared to drowning without water.
If you're still having yellow mucus, you probably still have an infection. If you're still having breathing problems, especially at night, ask for a temporary rescue inhaler so you can try to avoid trips to the ER. Asthma doctors are usually asthma AND allergy doctors, so work with one to figure out whether you have it, but also tackle the upper respiratory thing because that could be the source of all your trouble.
Good luck.