Large stomach swelling 10 weeks post Whipple procedure

[Jennysue]

I had a Whipple procedure 10 weeks ago as I had a tumour from my bile duct to me duodenum.  Part of my pancreas was removed together with part of the bile duct, all my duodenum and gall bladder, part of my stomach and 23 lymph nodes.  Two the lymph nodes tested positive for cancer and I see an Oncologist on Thursday to begin chemotherapy.  Since the operation my stomach has constantly felt really bloated.  I had a lot of constipation at first after the op but that has gradually resolved, but my stomach is really swollen.  I am wondering if it is fluid!  I had drain after the operation but both were taken out before I left the hospital 7 days post op.  The drain hole on the left healed immediately and the one on the right about 10 days post op.  I would like some advice please as to what I should do?