i've been playing this game and i noticed that there is no health meter. how do i know my current life?

if you have been playing this for a while u may notice that the health regens, also if u get hit too much you get blood round the screen, more blood less health

And when your screen turns black and white, it will be a very good idea to get the hell away from the enemies so make sure you have enough energy left when that happens.

health regens for a bit ok ok thank you guys