...the poo was darker(normal colour) and the only way I can describe it about 4small poos stuck together he's also chewing a lot on his wooden toys I'm going to see how he is tomorrow if no better I will take him back to the vets
The "4 small poos stuck together" ... with my past experience ... is either the beginning of a sign of constipation OR the first signs that the constipation is possibly breaking loose. I'm thinking, because of the discoloration of the earlier poo and the more normal looking latest poo that it is the latter of the two. Which is good ... just got to keep it moving. When the digestive system does not work properly, problems can pile up quickly. One lady I was helping with her chin's constipation, when it finally broke loose, he pooped a string of poos stuck end to end to each other that measured over 3 inches long.
Making the little balls of the "Critical Care" or the homemade equilivant, is a good source of nutrition and fiber, plus it will help replenish the flora in his digestive system ... but ... be sure to use cold water or pydelite to moisten the 'formula' with to form the balls and remember to refrigerate in an airtight container those he is not having immediately ... offer them to him one or two at a time several times a day ... warmer temperatures (room) tend to kill the flora if they are left out in the air to long. If he will eat them this way, it is much better for you and him and much less stress and mess for both of you. Besides, chins like the idea of treats handed to them, than the idea that they are being force-fed.
I would check with the vet about allowing him out to play and what restrictions he might need. (Such as closer supervision than normal. Not allowing him above floor level - he might fall or jump and land on an object that would injure him. Making sure he and his mate do not get to active or get overheated.) You might want to have a chilled chin-chiller for him to go to and set on to cool off, should he get tired or to warm. Or a mason jar filled with ice, using a thightly closed metal lid, will give him cooler air right around it and will provide a little bit of water from the condensation that will form on the outside of the jar. I would watch out for him if he becomes agitated or fussy ... this is often a sign he needs to rest and/or you may even contact the vet. If this is not a normal attitude for him, it can become one, if, he is hurting or injured or sick. Chinchillas can often be a bit short-tempered when they do not feel well or are in pain.
At this time, I too, strongly advise against rubbing his tummy or any where near his surgery. He may appear to be healing on the outside, but it takes a bit longer to heal on the inside. When a human baby is constipated or has gas in his digestive trac, it will often help if it's mother will very gentally rub (with a downward motion) from the base of the neck, down the spine to just above the tail and repeat this over and over ... in the one direction only. I have done this with chins that have been injured or were ill and were having some signs of constipation ... it always seemed to help ... but ... ask your vet first.
Keep us posted!
Jo Ann