Swollen ankles -cause???

I finished 5 TCH treatments-did not due the 6th due to what I thought was severe neuropathy. However,since I have started the solo Herception treatments hand and foot swelling has increased. I have constant pains in my joints. I have bothersome stiffness in my fingers. When I awaken in the morning, it takes about 5 miniutes of hobbling before I can walk normally. It is difficult to get up off the floor.I am seeing a physical threrapist with no improvement to date.Due to my painful joints,my exercise now consists of water aerobics. My oncologist thinks these side effects are unusal for Herceptin but has agreed to go to weekly Herception treatments to see if the side effects diminish. Has anyone else experienced these side effects? If so, did they dissapate over time? (My MUGA score actually improved after beginning chemo)