I might add, the high blood pressure is probably compensatory. That is to say, your carotid sensors indicate you don't have enough oxygenated blood going to the brain so the pressure is increased. Your meds interfere with this mechanism.
You have to give up smoking. Your blood pressure will go down.
Sounds like you have a so-called "greenstick" fracture of a rib, which is common for someone on prednisone for as long as you have been. They don't show up well on x-rays. That's just a guess, but the pieces fit.
There are other possibilities, all pleuritic in nature. Of course it could be lung cancer. Unlikely.
You are smoking and on the roller coaster ride operated by the grim reaper that ends in death. What part being dead and being eviscerated in a medical examiners office isn't exactly clear to you?
You are getting the sinus infections because the prednisone depresses the immune system. The sinus infections drip down into the lung and produce pheglm.
As you smoke, you load up the red blood cells with carbon monoxide and your blood is carrying oxygen at 50% capacity.
And you are "four-different meds" to control blood pressure....
You need to sit down tonight, evaluate yourself and give yourself a good kick in the pants.
Unless you get your life under control things are going to get much worse.
Good uck.