BoB, I have some what the same issue- looks like it is coming down to blocked/ restricted plumbing. Calcification of arteries has shown up in a chest scan have more in-depth scans coming up in about a week, covering the lower 1/2 of me and over all($$$$) plus a stress test ( yuck). I can go about 50 yards and then I have to rest do to pain issues in the same areas as you. I am 73 never had any problems of this before , but they stuck me on blood pressure pills due to being some where in the 140- 180 range 1.5 years ago, its down to where they want it now, and now this.