(jokingly) Personally, I think watching the news every day is going to cause the end of me
(seriously) There are no medical folk around here but you will get lots of advice so keep checking back. According to your signature, your lab test results point towards you being relatively healthy. I would concentrate on that.
(semi-jokingly/seriously) Try not to spend all of your time looking for explanations for things that go bump in the night (ie. burning/stinging "zingers", twitching, etc.) or worrying about family medical histories. I'm a little (lot) older than you and have found that thinking about such things can sometimes cause such things, if you catch my drift
For all you know, you might be the one to change history by not following in your family footsteps, yes?
(non-medical advice) Take your cat/budgie/donkey/moray eel out for a walk and steal an apple from somebody's tree and eat it. Sleep. Repeat as necessary. Report back.