Last round of chemo today

I celebrated my last day of chemo, after all I had well and truly earnt it. Research shows that the hardest times are at completion of treatment and at diagnosis. So what you are experiencing makes perfect sense. It will pass. I worried about oestrogen blockers too and the first three weeks were tough but that's settled and I'm going well. Your  chemo has done its job, so will the herceptin and tamoxifen. This will all sort itself out and you will be on your way to the next exciting part of your life.