Sorry to hear you are having these issues. I looked at some earlier posts and it seems to have been going on for some time. Bilateral swelling to the point where skin is shiny indicates that it is probably not the hip surgery causing your issues - now it is time to see your primary physician.

I understand how pain keeps us immobile, but frequent exercise for the sake of healing, and for moving fluid it is important. Can you get up and walk a few minutes at least every hour? Even at a slow pace it will help. Also, if you do not move that new hip, it will never get good mobility.

Two more things that can help when seated are elevating legs above the heart and doing "ankle pumps" almost continuously (in addition to walking.)

Are you monitoring your blood pressure? I am concerned about the amount of fluid you seem to retaining having a negative effect.

Let us know what you learn when you see the doc.
Sue