Feline Distemper Vaccination Side Effects

I posted in here earlier today about my kittie getting neutered. I totally forgot he got his distemper vaccination also. Being a good mama, I reviewed online to discover there are side effect which are not active, sometimes, until several days after the shot. I went to Whole Foods and bought Thuja which I am giving to him. He was able to eat some food (both dry and soft) and drink some water. It is advised to keep giving the tincture for 10 days. I am still taking him to the vet tomorrow.

Has anyone else had this problem with their cats after receiving the distemper vaccinations?