Achy muscles, respiratory issues - wheezing, crackling, and congestion - and low fever, off & on, for a month.?

Last year I must have had a dozen colds, usually started with a soar throat, and what I thought was the flu a couple of times. This year the cold season has started out much worse. My doctor does not have a clue to what is causing this except for normal viruses. He gave me antibiotics for the respiratory issue. I would appreciate any help.