I had a headache this morning and the light hurt my eyes while looking out the window. i also felt a little dizzy. yesterday, i could see dots in front of my eyes. what shouldi do?

Drink lots of water: It could be a migraine. I recommend drinking lots of water and try to relax and get good sleep.

See your doctor: This could be a wide variety of things but you need to see your doctor for an examination to determine if this is anything to be worried about.

Migraine: Sounds a lot like a migraine with "migraine related vestibulopathy". Consider taking an ibuprofen, stay hydrated with fluids, have a cup of coffee and see what happens. If it's the "worst headache of your life" you should get checked out. If headaches happen a lot keep a diary of what you're eating, when you're sleeping and when your period is to see if there is a relationship.