I can imagine how scared you must be. I’d assume the link to your grandparent is playing tricks on your mind.
Keep your spirits as high as you can. Get the checks done and then decide the next steps after that, we all have a tendency to start sldevelopikg next steps before we’ve taken the first one!
Step one might very well be “nothing to worry about” as it for many many many people every day
Keep in touch. Thanks for posting.