This may sound gross but. . .

Is it normal to have blood clots in menstrual blood? The doctor said my platelet count is abnormally high and I'm wondering if that could be a sign. There's a history of heart attacks on my father's side and my maternal grandmother died of a stroke so I'm a little concerned about big things floating around in my blood.

This isn't something I can bring up when I talk to people face to face (like my MD or my sisters) so any advice would be appreciated.