Is it normal headache?
Is it normal to induce headache due to vibrations caused by following things:-
1) When someone sit on a same bench as mine and starts to shake their legs causing vibrations will cause me headache.
2) While travelling in a car i have to avoid the head to get touch with the seat of a car otherwise the vibrations will induce headache.
3) When the bus pauses, the vibrations of a stationary bus when the engine is still on in neutral make nauseaous.