Why does my ball shrivel up sometimes and sometimes it just get loose?
This is very serious. I'm not kid.
It's all base on temperature man! If you're cold your ball will attempt to get as close to you as possible and cuddle up for the fry. They do this by means of scrotum muscles which contract cause your nut sac to shrink. When its hot your sac will hang lower because your ball have adequate heat beside out cuddling your body. They do this because sperm production requires the balls to argue a temp, when the temp changes the ball adjust to keep them contained by the ideal sperm factory scope.
Hope you feel enlightened dude. Later