Thanks for the reply.

It's so crazy how susceptible our minds are to the power of suggestion. My fear of lymphoma started a year ago when an acquaintance of mine was diagnosed with it. He recently made a facebook post about his recovery (he's doing very well, in remission) and that jump-started my worries again.

It helps to remember these timing correlations, how silly it sounds objectively to think that as soon as you hear about some disease you instantaneously contract it, as if illness could be spread by word-of-mouth.

The chance one actually has something seriously life threatening is very slim, and the chances that whatever one has is exactly the thing one just heard about and is obsessed with self-diagnosing based on vaguely similar symptoms is an infinitesimal probability!