I worry quite a lot about my health despite not really having an obvious reason to. I eat well and exercise regularly but still can't quite shake the feeling that there's something seriously bad going on inside that is just waiting to reveal itself. Pain in my side? Probably cancer. Headache? Definitely a brain tumour. To give myself some credit and make myself sound a bit less unhinged, I have actually had the real-life experience of something seemingly innocuous in my body turning out to be