What Causes Bumps At The Back Of Tongue?

I m concerned about bumps on the back top and sides of my tongue. They have a light burning sensation, look very tender and a bit swollen on one side of my tongue. I started noticing these bumps and general tongue irritation about 2 mo ago, seems to have gradually gotten worse though. Other symptoms I had over the same period incl shortness of breath, which would come and go a few times during the day and lasted 2 week. Also the right side of my throat was sore for 2 Weeks, mild pain when swallowing then went away and now the left side of my throat is sore with mild pain when I swallow or apply pressure on my tonsil area. I m 37 y/o, 20 yr smoker becoming very worried about these symptoms.