What Causes Breathing Difficulty And Pain In The Legs?

I had difficulty breathing after experiencing pain in both my legs after a 20 yard walk from the porch to the carport. Along with the breathing crisis, I experienced sharp pain in my shoulders which did not radiate. I have difficulty walking anyway with a debridement of the right heel, amputation of the two middle toes on the right foot and an amputation of the left primary toe, the amputations have long since healed. I also have arthritis in both knees due to military and VA-treated ACLR, bursitis in both hips and arthritis in my lower back. I managed to regain my breath after a painful, and frightening, time of breathing through my hands and forcing myself to breathe. Other symptoms is a persistent cough with a slight wheeze and occasional squeak/honk sound. I have also been using a cpap machine for about 5 months. Should I be worried and bring this issue up to my GP and other specialist, and which words will sum up this situation in 10 words or less? What can I tell my husband to do since we live more than 45 minutes from any emergency room?