kokishorttail
Had a similar issue. It might be your posture, eye strain, or you might just need to go outside for a walk.
good chapter but author PLEASE PLEASE go see a doctor because while im not one, I'm pretty sure I remember that being a symptom of a brain tumor (or something else equally as bad that i can't remember) but considering this information was from a show (can't remember which one or i would go check) take this with a grain of salt and while I could be wrong and this be nothing more than allergies (albeit the worst case of allergies I've ever heard of) I'd rather you be safe with me saying something than not and something happen to you I just hope it's nothing and you get better soon.