What's with my cat?

He's five years old and just started chewing on everything in my room recently.  Right now he's mauling my sock like it's a fresh piece of meat.  Is he teething or something?

>>41
What does that have to do with anything?!

>>42
Oh sorry please forgive me hehe.

>>43
I'm making it about you buddy.

>>44
Take a picture of myself? are you a stalker? also, _{stop trolling, please.} thank you.