Today my mother had an operation on her cancer. My step-farther told me that he would call me if anything happened. I got a call in maths which I was unable to answer and was unable to check who it was from. I assumed that my mother had died, but I didn't feel sad. I didn't care. After I left the lesson I found out the call was supposed to be a prank call. But what worried me is that I didn't care, and lately a lot of bad things have been happening around me and I just don't care... What is wrong with me?