I was going to try really hard not to worried as much this year but had two or three relapse since January 1st

Worrying about the bright sun light, reflection red flashing when out today, had it lots of times in the past but worrying could it be a brain tumour

testicle cancer was checked two weeks ago got told off my GP quite rightly that I am checking too often, but still worried i can feel something, I know I got cysts

colon/bowel cancer fear still I know I should not check my poop everytime it is a habit, funny shapes, small balls, splat, I know I need to add more fibre to my diet, but still worried I got bowel cancer, my poop is dark brown, brown colour, I know I got to worry if is black or see blood