Please help, i don't know if this is serious or not.?

i've had it before. it's nothing that i've ever been able to explain though. it feels like someone punched you in the eye & definitely looks like it as well. in a few days it'll go away. by tomorrow the swelling will go down. if you feel like it go to the doctor & see what you can do about it. but just know that it will go away on it's own. so no worries.