galen . Thanks for amusing responses.
I have written about this before, when I was still working and commuting in to work, I seemed to have every symptom for every cancer depending on which campaign poster I saw every day on the train - February was e.g. bowel cancer, July was skin cancer, October was breast cancer, November was prostate ... oh, hang on!
I've learnt to stay away from Google since the time I had a pain in my side, and Google told me it was a parasite!
[By the way: I am not being flippant about cancer. After my mother died from lung cancer (having never smoked at all), I had serious health anxiety around getting cancer, hence the effects of reading the posters on the train].