What Causes Fatigue With Swelling In The Ankles?

I am a 36yr old athletic male, 5 8 175lbs. The past 2 yrs I ve been experiencing severe fatigue which has progessively gotten worse. I used to workout 4-5 days a week and played semi-pro football, however, these symptoms have caused me not to exercise at all now and it is a struggle to get up for work and to even do daily task around my home. My DR sent me for a sleep study and i was diagnosed with OSA. I ve been on CPAP for 6 months with absolutely NO improvement with fatigue. A recent update did however indicate that CPAP is treating the Apneas significantly. About a yr ago, I experienced excessive swelling in my ankles for approx. two weeks then went away. I never had this in the past and typically eat a healthy vegetarian diet with protein supplements. This past winter, I started to notice discoloration in both of my hands and was later told by my DR that it was Raynaud s Syndrome. Most recently, within the past month I have been experiencing shortness of breath throughout the day. A nurse at work checked my blood pressure which was normal but my pulse rate was raised to 172 then dropped to 94. A few days later it was checked again and the rate was as high as 117 then back down to 96. I do take a high dose of Adderall which was increased 3 months ago because of the OSA, but still at 160mg per day still barely gets me by each day. I realize that Adderall can effect the heart rate but I ve been on this med for 4 yrs now and it never has effected me this way even when I immediately started the high dose. Today, I did not take any Adderall and had my pulse checked and it was still 96 and I am gasping for air due to shortness of breath periodically throughout the day. Could there be an underlying condition going on with my heart? Thank you, Michael