I think the other ladies have given you excellent advice. Most of us have an emotional time at the end of treatment and losing your Mum at this time in your life must have been so traumatic.
We all tend to do just what needs to be done during treatment but when it finishes the emotional part catches up. While you are going through treatment there are the obvious physical differences that lead to people treating you differently (some do this well and others don't). Afterwards people are not so aware of what has happened and you don't get so much of the heart-touching kindness of virtual strangers to make up for the bad or non-reactions of those who we expect more of.
It is a time of adjustment after the crisis we have been through. It takes time and sometimes a bit of help to get through it. Don't expect too much of yourself and give yourself time to grieve for your Mum and yourself. Keep in touch. Deanne xxxxoooo