getting hurt by negative entities

[Danyl]

when i do the breath of fire exercise i have been falling down and hurting myself and i dont know how but i think its the angels that have been attacking me for sometime. I do it standing up,maybe i should do it sitting down but i find it easier to do i standing up. today i hit my head on the bottom of my table and it always seems to come out of nowhere. also the breath of fire hurts to do. it causes me pressure/pounding type pain in my head sometimes as well. any ideas on why this is happening. i have been doing the aura of protection and i am protected but it still happens.
please help.

Zarion