Swollen hands, feet legs, it is edema and what do I do?

Lately I have been waking up and my hands and feet feel tight and hurt a little. I have troubles zipping up zippers (and not just cuz my belly is in the way!). Its not like arthritis, but more like they are tight with swelling. Whats going on? I have surgery in 10 days, on July 22nd. Is there any thing I should worry about that may cause a complication? Nothing has come up in testing. Any answers would be appreciated.

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