There raise a pain in my head when I do work like travelling, walking, doing work which need enough eye vision suppose writing though my eye vision is 6/6.This pain earlier happened slowly to high depending on continuance of above activity but now it is happening mostly with me and does not allow me to sleep. If I become able to sleep more time it get down. Kindly tell me the clinic where I can go to check up because I belong to EWS category hence cannot afford high medical expense.