Im blood thinners and I was on warfarin.
Warfarin is sensitive to what you eat, etc so you need to be monitored since your blood can be really "thin".
Once I pissed blood. It didnt look like I had blood in my urine but urine in my blood, and once I put down a 95lbs dumbbell hard on my thigh doing presses. I bleed around 3 pints of blood in my leg after that. Took month for it to go away, had the biggest hematoma that slowly moved down my leg.
Another time I shit blood, like diarrhea but with blood.
Fun times..