Have Cat Questions? Ask a Cat Vet Online.
Any time that a cat has problems with constipation, you have to worry about an intestinal obstruction that might be caused by ingested hair. Your vet would have to diagnose this.
If it IS simply constipation, you should give him 1 tsp of canned pumpkin (not pie filling) with meals for the next couple of days. This will help him move his bowels.
At this age, you have to worry more than the average pet owner.
Let me know if you have more questions about this.
If the cause is constipation, pumpkin will help. If it's not, it won't. I would start with the pumpkin and hope for the best.
Obstructions most often need surgery to repair. I would really not recommend giving an enema at home unless you have been trained to do so.
Let me know if you still have questions.
I am glad that you were able to see the vet! You sound like a great pet owner! I wish that more people were like you.
I am hoping for the best for you both as well.