Poor baby! I don't know if it's possible for them to "spoil" at this young age, but I can tell you first hand, they certainly do later on!!
Toto would follow me around and cry until I picked her up. She was so tiny, I would just tuck her inside my robe, tie the belt and the little snot would stay there peaking out as happy as a clam!
Patrick bought a sling [like for your arm, with a strap to go around your neck] ... it worked great and I "wore" her around the house while I was cleaning, etc. That was great for both of us until one day I was cleaning one of the baths, leaned over and I caught her just before she plopped into the toilet!!
So ... if he
is just spoiled and you try the sling .... stitch up the open end! I would get him checked by the vet first and make sure it's not something physical. Please keep us updated.