Hi Hazel!
I believe the sever muscle pains you are experiencing may come from the Taxol. I had the same from Taxotere (a cousin) and for many mnths after finishing T, yet continuing on Herceptin. Finally, I no longer have that terrible pain in my arms and legs. The neuropathy in my fingers and toes has gone.
I have been on H for over 9 yrs and have no side effects but for chronic fatigue, flagging red bld cell count. I hope your terrible cramps soon subside...
BE WELL, Hazel... As you can see from my signature, I am very lucky. Somehow, it can always be worse.
Andi