Good idea. I had much the same treatment as you - mastectomy, axillary clearance, chemo
and herceptin. Reactions to treatment are hugely varied and whether you are considered a strong person or not doesn’t seem to make much difference. I didn’t have much of a problem with chemo but a few treatment related physical side effects led me to seek some advice on ‘getting back to normal’. Best thing I could have done - with an excellent counsellor, I addressed a couple of issues I had been cheerfully avoiding (nothing to do with cancer) and set myself up for a new and better normal. Sometimes you just need to look a bit beyond the symptoms. I settled most of my fears of ageing and dying, and have had eight excellent years of living since. Best wishes.