I'm so sorry to read about your mum and cannot begin to imagine how frightened and alone you must be feeling. It's really important that you are able to speak to somebody about how you feel and to get some support for yourself at this really difficult time. Could you maybe ask your GP to refer you for some counselling?  Being able to talk to someone not connected to what's going on can be helpful. It might be that one of the  cancer charities offer this type of support to families too. I really hope you get the support you need to help you to stay strong.   

Thanks ,just been really struggling last few days, and if I continue to do so I will go see gp, I'm normally quite upbeat,dont know why but just cant seem to control my emotions last few days.