Hello Kate, I'm so sorry you've had this diagnosis at such a young age. I too have been given the cancer news this week and have had to tell my mum and siblings. I'm 65 she's 93, lives miles away and regardless of age it's a very hard call to make. I've told all my family and friends this week. For some reason it felt that knowing was like a weight lifted and we are all pulling together to move forward. 3 years ago I lost my younger brother to cancer. He didn't tell any of us (he lived 150 miles away) and consequently when we found out we only had a short time  with him. I've never seen my mum so distraught, she didn't have time to say goodbye properly. Because of this I would never hold back any information from her or the family. I'm sure you will get through this, so don't try and be too brave worrying about how your family feel. They need to know so that they can help and support you through this. I wish you all the best and now I'll stop rambling on. Xx Rose