So about 3 weeks ago I had gotten sick with what I think was the flu. I had a fever, chills, head/body ache, and a cough with a stuffy noise. Well the cough has consistently gotten worse over the past three weeks. It is a dry cough but sometimes a little mucas does come up. Sometimes the cough is like a spasm that I can't control and other times it's just a very like deep down cough. But within the past week when I take a deep breath I have started hearing a strange noise. The noise almost sounds like a puff of air is being released into my throat sometimes a little like squeak is present, but after this is immediately followed by hard coughing. I'm starting g to get worried because it is getting so much worse and it's starting to be unbearable. Also I feel slight pressure in the center of my chest sometimes. What is going on with me