Edema - Post Surgery

Hi Everyone,
 
I am now 6 weeks post surgery and I have been suffering with edema. Every morning my face (especially my eyes) are overly puffy.  I look like someone has injected my eyes with fluid.  I cannot wear my wedding pants and all of my clothes are tight in my legs.  I am eating very light foods and drinking lots of water.  I am running 4 miles a day to help sweat off the water.  I have gained pounds in a week.  I thought this was all related to my menstural but I have since started my cycle and ended my cycle. I have to go back to work soon and I am not sure I can go back like this....did anyone have water retention post surgery????
 
Thanks,
Amey