HELP do you ever get paranoid that you have a brain tumour?

Like if you get a headache or feel odd, do you get paranoid its a brain tumour?
Sometimes I get this thought in the back of my mind, but other times it full on bothers me and I start crying and panicking and everything and I don’t know what to do.
I just.
God, its this majorly weird thing about me, and is specific to brain tumours.

Anyone???