Hi, so sorry Walter is going through all this stuff, poor guy, and you, it must be so worrisome. You have already gotten great advice and seen the vet, hopefully everything will help. Pumpkin will help with the constipation, and you can also soak his paws in apple cider vinegar and warm water. I just wanted to wish you well, and hope Walter feels better really soon, sending love, hugs and prayers your way that he feels better soon. He's already better with you rescuing and caring for him, thanks for saving this beautiful bully. You are awesome.