[Lucy]

Tntblonde - I'm having a similar experience. I'm taking anastrazole instead of tamoxifen and I'm told that's the issue - not the herceptin. I believe it because I delayed taking the anastrazole, in part, because so many of the possible side effects of the drug were what I had experienced with the chemo and I wanted to know if it was lingering side effects from the chemo or from the new drug. I got herceptin alone for 3 months before I started taking the anastrazole and I was doing pretty darned good during that time. I would ask your doctor if the tamoxifen could be what's causing your side effects. I would assume they would be similar to anastrazole but I don't know that for certain.