Some people are born with high hairlines. I have Asian friends who I've known since I was a kid. They have what might be considered a Norwood 2 hairline, but they had that hairline when they were kids as well - I still have the photos.
Only way to tell whether you have receded is to look at pictures of when you were younger to see if there is a difference. Or if you're losing fistfuls of hair a day, which it doesn't seem like you are.
I'd check out old photos and monitor the situation. If you see it getting worse, then think about getting a regimen of male pattern baldness treatments together.
There is no point medicating if you don't need to.
Good luck.
Def