Hello and thanks for your question. It can be that it is just fluid retention from the surgery. It should resolve in a week or two. Any time you have a surgery your body has to adjust to any anesthetics used, pain medications and just the trauma to your body of the surgery. Hopefully this will resolve soon. For now, make sure you are eating a healthy diet, do some walking daily,drink plenty of water and take a multivitamin. These things will help your body get back to its normal equilibrium. Good luck and I hope you are feeling better soon.