If there's a small risk on doing heavy sports with mvp without regurgitation, i should avoid those?i feel anxiety and palpitations...taking diltiazem.

NO: Mitral prolapse without regurgitation is not a serious condition and should not deter you from any sports activity you wish to pursue.

For the most part no: For the most part, you can participate in competitive sports but I wouldn’t recommend lifting heavy weights that cause you to strain excessively. There is a small risk of damaging the chords that support the valve which could make it leak significantly.