Do mindfulness Mindful breathing exercise Inhale from nose for four seconds when you inhale your stomach should come out and it should inflate .. hold the breath for 2-3 seconds and then exhale from your mouth slowly for 4 seconds like you are blowing a candle that time your stomach should go in and body will relax. Continue to focus on your breath. Whatever your thoughts are or anxiety . Just keep focus on the breath. Don’t give any importance to the thoughts it will make it less powerful and it will go away. You will be more calm and composed.

I would recommend you to regularly exercise and maintain a sleep hygiene.. hope this will help you.. Ensure adequate water intake..

Primarily it seems muscle contraction/ stress headache.... But it's more than that as it's​ affecting your sleep & intellectual capacities too... One needs to understand the cause behind it & extent of affection. Consult & take treatment.

Anu history of photo phobia Photo phobia Vomiting Sleep problems Acidity Dizziness