I've been having a small headache and my nose has been runny and acting up. I've been sneezing a lot, getting a fever as well as experiencing nasal congestion.
I thought it be a cold because my sister had one earlier and it's been spreading recently but when I was diagnosing myself through this website, the top answer was indoor allergens.
But, I have never been allergic to anything. And I barely believe I will just suddenly develop an allergy at the age of 16.