Just wondering if anyone on here has used Nattokinase?

As I've been taking 4000FU a day in an attempt to help lower my blood pressure for the last couple of weeks.
Last night after doing very heavy squats I noticed my face felt funny and by the time I got home I could see I have ruptured blood vessels right across my face.
Today I can certainly see damage under the skin, very red and my face feels slightly sore almost like it has been burnt.

The only thing I can think is the Nattokinase has thinned my blood to much which has made my blood vessels susceptible to damage when under extreme internal pressure.

Anyone got any ideas?