hi,
thank-you for providing the brief history of you.
as you said you have a swelling of both the Lower
limbs you need to focus on strengthening the muscles of the core, spine,
pelvic floor, lower limbs.
initially begin with performing hot water fermentation and keep the legs eleveated over the pillow this will help reduce the swelling.
post that begin with breathing exercises.
there are various different kinds of breathing exercises .
also core stability is the next you should perform along with spine and pelvic floor training. strengthening this group of muscles will keep the core stable and allow the stability of the spine.
Perform Strengthening the hip muscles and Lowe limb muscles as a whole to get the uniformity between the muscles to allow the venous return to occur.
Also there will be no harm getting Doppler test done to rule out the vascular pathology. it's only for a safety.
Well after performing all the mentioned exercises you should have a good health. Inclusion of the weight bearing exercises will also help to progress further. Since your age is 44 there may be a chance of getting calcium reduction in the bone for which weight bearing exercises will help.
You can take a deep understanding of all the exercises by meeting up a physical therapist and learn it. once you have mastered the exercises you can perform exercises at home and all will be well.
with the grace of God I wish you a speedy recovery
regards
Jay Indravadan Patel