Hello, 

lots of people deal with things in different ways... 

my niece was diagnosed 2 years ago at the age of 8 with a brain tumour. I was beside myself with worry, she had an operation almost instantly and when I went to visit her in hospital I thought I would be a mess, but you have this inner strength that fights through to stay strong and support those you love that need you. Not so long after her diagnosis, my brother was diagnosed with kidney failure in both kidneys(my nieces dad - 32) imagine what they must be feeling having both being diagnosed with serious illnesses. Again I was beside myself, crying because they don't deserve this. But I am strong for them. It's nothing to be ashamed about that you aren't crying 24/7, you have let out your emotion and now your inner strength is out to support your sister. I hope this helps you xx