Hello dear
I understand your concern
Edema is due to accumulation of fluids in intra-cellular tissue.
Following are the causes:
Congestive heart failure/heart problem, chronic venous insufficiency/ incompetent valve of vein, lymphatic obstruction, protein losing nephropathy,
arthritis, infection and high salt intake.,
hormonal dysfunction
I advice you to go for following tests to narrow down the relevant concern with is responsible for this:
Color doppler USG for venous system, urinary protein/
albumin,
thyroid hormone and
steroid hormone analysis.
(let me know the results if any of them has done yet)
Take following advice:
Do regular walking, elevate leg when sitting, wear leg wedges or keep leg elevated by putting pillow under the leg during sleep, wear sport socks and proper fitting socks.
Avoid: long time standing and sitting with feet dependent, excessive salt intake.
Take healthy diet and plenty of fluids.
Best regards
Dr. Sagar