They will wrap around your wrist/arm/leg... Especially if you're standing up. They like to make sure they won't fall. Nothing wrong with it. To unwrap him, unwrap from the tail first. Their tail is the weakest part.
There are 2 kinds of strike. The defensive strike - strike and retreat - or the hunting strike - strike and wrap. If he's doing the wrap, then yeah, you might check your feeding schedule to make sure he is getting enough food.
It might help if you describe your complete set-up or rake photos so we can give you more tips.