I agree with my colleagues that there is no need to worry & that u're a very low risk given family hx, etc.
What i'm puzzled about is the reason for ur question! if u are worried, or find that u tend to worry a lot, i would recommend that u work on that... Psychotherapy
is a good place to start. Clearing that kind of energy from ur path would make 4 more comfortable living! wishing you well..