I forgot to check your profile yesterday. I often don't do it because many put in false info. Taking that info at face value, I also think many females can be just as aroused as males are at your age. The main difference is it usually takes more than just a visual stimulus. It usually takes more emotional arousal for females.
What is your gender and age because that has something to do with sexual feelings. Males especially in their teens and twenties are at their peak so its not at all unusual to be preoccupied with these feelings. If it is chronic and interferes with your ability to handle school and work then that has to be addressed. It all depends just how much it consumes your daily activities.
I'm going to go with natural part of life? Only because im always like this to. I guess this is personal question but have you know in a while (got some) I havent so im sure that my reason. Woman hit there prime later perhaps your getting your now.........
Hi kaycal, welcome here
if you are having obssesive thoughts about sex and this of being obssessive about anything is not a healthy thing for ourselves, then i would advice you to address those issues through therapy, sex is a good thing but not being obssessive about it nor about anything .... Ask for help, you won't regret it :)