This isn't so "weird". It falls under the category of cough headaches, and there are two types of them - https://www.mayoclinic.org/diseases-conditions/primary-cough-headaches/symptoms-causes/syc-20371200
You should definitely see your doctor about it. Since it's new, and your vision is affected, and it's getting worse, it's absolutely time to see the doctor. This could be nothing, but it could also be a sign of something far more serious. It's good to get it ruled out.
Let us know what happens.