I have a cough, especially when I go to sleep, and I wheeze, I wonder what I have. I have no pain anywhere except for a little mucus when I cough.

Based on your symptoms, it is unlikely that you have bronchitis. Bronchitis typically presents with fever, greenish secretions, and symptoms that persist beyond 10-14 days. Since your secretions are clear, it is more likely that you have a simple cold or a viral infection. If your overall condition is improving, that is a good sign. Your cough may persist for several days or even weeks, as it is a reflex of the body. It is important to stay hydrated to keep the secretions as liquid as possible.