I had the same chemo as you Libby.I know what you mean by bursts of energy.Its quite bizarre isn't it? Usually,by day 9 I was over the worst and starting to feel normal again.The second week you just have to remember to stay away from crowds because you are at a greater risk of infection,and then the third week you will feel great! You start to think' I can do this' then it starts again!!!For me,chemo didn't get harder,just maybe the fatigue was worse each round.I made sure I walked though,and this really does help to alleviate it.All the best and stay in touch.Cheers Robyn