Well, if it truly is a pitting edema (the indentation should remain well shaped and be persistent), then I suggest you seek medical help immediately, since it's already been a few days and the edema persists.
The fact that you're working in an office and hence sitting down a lot is also adding to the problem, since blood accumulates where the fluid retention is and causes the edema to swell up even more. Raising your legs to improve circulation is very important.