Hi I had single mastectomy + axillary clearance, followed by 5 1/2 months of chemo and 5 weeks of radio. I did get tired the last week of radio and then for about a week after. A different tired from Chemo, not the fatigue, just exhausted and needed to sleep. My naturopath suggested calendula cream which I used to apply 2-3 times per day to my breast and neck area. I only had mild burn in breast region and a bit of skin breakdown around neck - all manageable. I found radio much easier on my body and mental state. Good luck - almost there!