Sorry to hear about your mum. I had my mastectomy last year for my DCIS and my surgeon actually advised waiting 1-2 years before thinking about a reconstruction if I wanted but I decided pretty quickly after that I really didn't want to go through any more surgeries. I have a prostetic which I wear going out and to work and it is great, feels and looks normal. I have to admit sometimes I can't be bothered to put it on if I am just going out to the shop so I just wear a loose top and nobody seems to notice but if they did, well bad luck!! LOL. Thankfully, my results were good and it hadn't spread to the lymph node so I didn't have to have any radiotherapy and just go and see my surgeon every six months. If it happens to pop up in my other breast I would have no hesitation in having another mastectomy. I also belly dance and after adjusting costumes (as there is no cleavage anymore) I have performed again and nobody realises.
I hope this helps, I was worried at first about how I would cope after a mastectomy but I feel completely normal and happy. I have a wonderful family who supported me completely and made me feel and still make me feel like a normal, beautiful person.
Lots of love to you and your mum
Kelly xx