Hi @kmakm. That pretty much sums up my last 12 months too!! I don't sleep as well as I did pre chemo but I saw a kinesiologist who had me on zinc drops and a good daily dose of magnesium and my sleep improved dramatically. Night sweats do wake me but I just tell myself the tamoxifen is doing its job! I had doxyrubicin then taxol followed up by radiation. You have probably hit the nail on the head that the mouth ulcers are part of being run down and its just a reminder that i haven't bounced back like I would like to have. I just couldn't work out why I was still getting them when I eat quite clean, don't drink sugary drinks etc and I do look after myself most of the time. although I am partial to a wine and a tim tam!! I hope its not a permanent problem but we all know worst things can happen!