I would try as much as possible not to put your head down, sending blood to the head is not good. It is easy to disorientated. Also if you have balance issues it is really easy to bump into things and if you vision is off it can feel like you are drunk when you walk.

I also have issues with depth perception and I have mid line shift syndrome which moves my vision to the left. I am extremely careful about knowing where things are and I don't drive.

In any case you have to be extremely careful of you movements as banging your head again won't be fun and can set you back.

You really should try and limit you physical and mental activities as much as possible until things get better.

Cheers