Dear Jude
I had six months of chemo ( A/C and Taxol, 3 months each,) and 12 months of Herceptin. Your chemo will depend very much on your oncologist's assessment of what will work best. As I am sure you will have been told, reactions vary immensely and I can't honestly say I know of any particular reason why. Some will say attitude is everything but I don't think it is as simple as that.
I had virtually no side effects from the A/C - no fatigue, no nausea. I got peripheral neuropathy, a blood nose and lost my tastebuds from the Taxol. Watch your fingertips and toes, if tingling occurs ask for advice on dealing with it straightaway. Iced water and Vitamin B may help. The blood nose was annoying, but Vaseline helped. Tastebuds were also annoying but as a colleague ended up with everything tasting burnt, not tasting very much at all wasn't so bad. All these got better after my treatment was complete. And my hair started growing back while I was still on Taxol which was unexpected.
I did get an arrhythmia, possibly A/C accelerated it, no-one quite sure. But it is manageable and I am fine. I also got lymphoedema, due to an axillary clearance. Also manageable. Best advice I can give is don't try to overthink these things, some may never happen. If some do, you will find ways of managing them as and if they arise. If you worry about them all, you will drive yourself silly and impede your recovery. Curiously, cancer is a really good time to live in the moment as far as possible.
I chose to work throughout, it kept my sense of humour and proportion intact, but every one reacts differently, give yourself space to take time out if you can and want to.
Herceptin was a doddle by comparison, I have had no negative side effects.
Three years on from diagnosis, I look well, I feel well and appreciate every benefit from my treatment. Yes there have been some costs, but looking back they fade, and can't compare to the likely alternative of not having treatment.
Very best wishes