Hello I'm so sorry to hear that about your wife,just to let you know it will get better.The side effects are horrible and the tiredness also,it is normal to feel so tired I used to wake up feeling tired and also feeling sick,I used to eat ginger biscuits which helped a bit,also make sure your wife drinks plenty of water to flush the treatment through,try not to worry I know it must be difficult also to see her that way and feeling helpless,but you just being there with her makes all the difference.Hopefully soon your wife will be feeling a bit better.

I'm so sorry to hear you are going through such an incredibly tough time. There's lots that can be done to manage the side effects so plesse keep talking to your team - writing them down helps too. I found the Liz Oriordan Complete guide to breast cancer book ver6 helpful. One of the things Liz advocates is dragging yourself out for a walk every day regardless of how fatigued you are as she says it helps energise you when exhausted. I've followed this advice when I've been shattered and always feel a bit better. Don't know if that is worth a try.

So many of the new treatments are targeted towards HER2 positive cancers, that feels like a real positive 

sending love and hoping things feel a bit better soon. They will get better - side effects can be managed and also you are very early stage in dealing with the shock. I found talking it through with the nurses in this helpline, breast cancer now or Macmillan very helpful too especially dealing with side effects and managing shock. Also I asked for a referral to a psychologist and he's been great at offering strategies to cope