, or pushing too hard for passing stools can increase pressure in head.
This is called increase in intra-cranial pressure.
Constant increase in intra cranial pressure may cause many effects. But occasional increase in intra - cranial pressure is usually symptom free.
Elevated ICP will cause congestion of eye that is why your eyes will be red. It also makes blood flow sluggish which may lead to dizziness
. After returning to normality the blood flow will rush to the brain which causes burning sensation.
The burning sensation of head will stop after a while.