Hi Katia,
Deanne is so right when she says that everyone is different and reacts differently to the surgery and treatments.
I went back to work (retail sales) on a casual basis 4 weeks after my mastectomy, and was very glad that I did. Ive continued to work (casual hours) during my 3 months of chemo. Apart from dealing with "chemo brain", Ive been fine. Its actually been very good for my emotional and mental well being to be there. At work I am "Nina Normal" and happy to help my customers make decisions and spend their money! At home, I am a sloth and it isnt good for me. But you have to be realistic because wearing yourself out wont help in your recovery. Slowly, slowly, and see how you go.
All the best, stay strong. Best quote....get up, dress up and show up!
Nina