don't take it too lightly, carrie. go & do those tests & get 2nd, heck even 3rd professional opinions on your situation if u're not sure what to do about it.
even teenagers get heart attacks, & twenty-somethings lose a lot of hair. & something like 911 happened.
be safe & have yourself checked. if it's nothing then u'll have peace of mind. if there is, then at least u're prepared.
my prayers are with u.