How to help my 5month old puppy who had intestinal surgery & umbilical cord hernia surgery!!!?

He's been through a lot in a short time and it's not surprising that he is uncomfortable. Call your vet and see if they can prescribe some different painkillers for him. They may also want to give him some subcutaneous fluids to prevent dehydration which may perk him up quickly. These are common and easy things to do to make a sick dog feel better fast. Call right away.