Weird sleeping problems?

When i was from age 8-14 i would "wake up (sleep walk)" and Run through my house screeming but just end up going back to my room and ping out by my door (according to my 5 family members). But now im 16 and i have this problem. i sleep in just my boxers, and lately when i wake up in the morning im wearing clothes... and usally its stuff i keep in my closet. I don't wake up in the middle of the night and i don't remeber puting it on :(. whats wrong with me?