Avoid caffeine and food that may cause your blood pressure to increase. Some PCS headaches are due to residual neck injuries. The muscles from the neck to behind the ears can spasm and cause head aches.

Overdoing it with work or other stimuli is a big cause.

Food alone is not the usual and/or long term cause. Many factors can come into play.

Many of us are on vitamin and other supplement regimens to help our brains tolerate the PCS and stress.

Tell us more and we may be better at understanding your situation.