My wifes cousin, who also happens to be her best friend has developed pancreatic cancer which has also been found in her liver. She had 5 chemo sessions after which she felt much better and from this she was informed that the tmour (tumours?) were shrinking be it ever so slightly. She was then afflicted with red, sore and swollen legs which will not go down.Her chemo has been stopped (before Christmas) because of this which she finds disappointing as she felt the benefit of it.
Dear sir, yes this can be the side effect of chemotherapy, but we can't say about the diagnosis without looking at it. In fact I would like to emphasize upon an important diagnosis that it could be Deep vein thrombosis, whose probability is higher in pancreatic cancer. Doppler study of leg veins confirms it. It can be treated with medicines. So I would suggest you to have a consultation with oncologist regarding same and get the treatment started.