Ive been feeling weird lately?

ok a couple weeks ago i didnt really know exactly who i was because i knew what other people would expect me to say about something but i had no idea what i really thought about it myself (i no its wimpy that i got really emotional but ya). since then ive been feeling really weird. im not as unsure of my identity any more but i started felling a decreased (but not non existant!) drive and couldnt stop thinking about just the feeling of falling asleep with my arms around a girl. i also started feeling a little less tough. i talked to my friend and he sed that i was growing and my hormones and stuff couldnt keep up. now these past couple days have just been really weird. its been like some sort of male version of bipolar. ill be like really turned on by something and then the next minute ill not be thinking about at all and just wanting intamacy. last nite i was texting a girl and she sed shed give me a bj. while i type this i dont even want one. ten minutes ago i did. wtf is going on? btw im 13