I have a nightly routine with teh Gizmo which consists of me laying down in bed, watching t.v while he runs back and fourth on the bed, plays, etc. Well, on thursday night, while he got "all up in my face" I started to hear a cracking sound (much like when you crack your fingers, elbows, etc.) coming from his back left foot. I pretty much ignored it because I thought maybe it was a cramp or something. Then, on saturday I started hearing it again, constantly, when he walks, runs, etc! So, I put him on the bed with me and started feeling his legs. He didn't yelp, cry, nothing but when I pulled his back left foot part up ( Did that make sense?) and then down, I MADE it crack and if you continue doing that, it'll continue to crack but it doesn't bother him at all. I only did it twice because if it's something I should be concerned about, I didn't wanna make it worse. SHOULD I be concerned? Maybe, a visit to the vet is in need? It's monday morning and yup, it's still cracking! The constant cracking gives me goosebumps. :new_Eyecrazy: Advice?