Most common remedy is to drink water. Headaches often come as a side effect of dehydration. Even though you may not feel thirsty, it’s no wonder headaches come about when your internal hydration level got you like this:

It could also be due to lack of sleep or overuse of technology & exposure to bright screens, so you could also try taking a break and lying down

Now I already know before they say it but some Sticknodes mf’s already failing all 3 which is no surprise