Hi, Welcome to Health care magic forum.
As you describe, you are a complicated case of edema and over weight.
You should take care of the B.P,
anemia, and
diabetes,so that half of the ill healths are under control.
For reduction of the over weight
Avoid the calories, fats, oils, junk foods, fleshy fruits like guava, and banana.
Practice, morning walk,
yoga, gardening, and house hold works like cleaning, keeping things in order etc.
Minimize the sleeping time, practice late to bed, and early to rise. Avoid the day time sleep.
wishing for a quick and complete recovery. Thank you.