I finished chemo in December and had a mastectomy 6 weeks ago. I went to see my oncologist last week but was told that my radiotherapy was going to be put on hold as I have a build up of fluid. I've had it drained twice already since surgery. I'm now starting to stress about it. Nurses, doctors and my surgeon have told me it will settle down but I cant help worry about it. Has anyone else had this experience and can reassure me.