Hi my name's Andy im 20 years old male. I exercise and eat healthy. The other day i was driving home from the mountains and out of nowhere i got this really bad headache. My sinus closed and my ears started to ache. I felt like a really bad pressure in my head like if someone was squeezing my head. i could still breathe normally from my mouth and vision and movements were all ok. I get scared really easily when it comes down to my health so i started getting nervous. But then the pressure/headache went away after about a 1minute and i calmed myself down. I felt like my ears were still plugged and a little bit of pressure about the rest of the night. I did some research and it said it might be because of allergies or stress or maybe a migraine. I'm not really famliar with any of those except allergies.
what can be the reason for this and what are some good remedies?
thank you