PLZ HELP! 2-Months Post-Op & Major Swelling in Both Legs, Ankles, & Feet - Should I Be Concerned?

I got upper/lower abdomen done on Dec. 17th, 2013, I wore my compression garment, exercised lightly, followed doctors orders to a "T" and everything seemed ok, except the swelling. I am 2 months post-op & I have fully body swelling, but it's severe in my left leg, ankle, and foot & more minor on my right leg, abdomen, arms, etc. I have gained 18lbs & it's ALL fluid-retention because I've been on a strict, low-calorie diet & do 3 mi 2x wk on elliptical and Insanity workout 2-3xwk for past 4 wks.