Is anyone here a Hypochondriac?

Just recently, I've thought perhaps I may be a Hypochondriac. I'm always worried I may have a brain tumour because of my terrible memory and headaches. I worry that maybe I have this unknown sickness, that doesn't show many symptoms. I read a book about a guy who has a brain tumour and will die in a year, but he had no idea!! I feel like just for my own ease of mind I should get some tests done, so i don't need to worry anymore. I know it's silly but it honestly worries me. Anyone else feel like this sometimes?
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What can I do to change my thinking?
Is anyone here a Hypochondriac?
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