hi,
thank you for providing the brief history of you.
As you mentioned your history I understand that you have not met any
injury. So this has to be ruled out. Now since you have a swelling of the lower
limbs that is the ankle, and pain free on rest.
now to help you further , as per my understanding I am coming close to the problem - you are 71, so there is an ageing process. Next, your
metabolism has slowed down too. Also , your Cardiorespiratory endurance must have fallen. But one thing to understand is that during the ageing process, the metabolism is at a slower rate and needs more effort to make sure that it functions well. Also , as we age Cardiorespiratory endurance slowed down, for which walking is recommended badly and some physical exercise which are individual or a group therapy.
my personal practice goes well with almost 90% of my patients as
geriatrics so by understanding and improving the metabolism in them helps me alot to help them. I have all my geriatrics enjoying without pain and aches. Cardiorespiratory endurance is on the moderate level to help them ease the daily activities. They are on regular exercises
I will recommend you do
physical therapy and perform cardio training as it is needed not to over come the swelling issues and also for improving the metabolism.
regards
Jay Indravadan Patel