Hi dear, do you get such headaches even otherwise? Like when you are not wanting to sleep too? It appears to be a migraine sort.
Next Steps
Do try to sleep on your right side from now on. Have you got your vision tested in the recent past? Try to avoid being stressed out over anything.
Health Tips
Do perform certain physical exercises on a regular basis. Increase your intake of warm drinking water. Please do consult here for further assistance.