I Have Been Sick For Over A Week Now It

I have been sick for over a week now it started as what I thought was a sinus infection but the mucus just keeps getting thicker andmoved to my chest and it is getting hard to breathe. I am also having coughing fits that I can not breathe at all through just weezing I am using a deconjestant a alergy pill and an inhaler but nothing is helping I have a history of phenmonea but I had the vacination 3 yrs ago I am a smoker for prob 25 yrs all I can do is wheeze I need air!! I have been week and tired for 2 days now any ideas on what is wrong