Feline Hissy-Fits!

Hello,
I was recommended 'agression formula' by a cat whisperer for my 3 year old boy, but I really don't like taking ready made formulas as they may have things he doesn't need, or may miss things he does need... the formula has Scutellaria, Chamomilla, Belladonna, Arsen alb, and Hepar sulp.

The problem is with my 3 year old male cat Valentino who has been with me for most of his young life. I feed him raw food, and he has always been happy and healthy, though quite shy and occasionally skittish.

This spring I took on fostering a mother and 5 kittens. I kept the new ones away from Tino. The mama Dona was very aggressive, filled with mother hormones and she went after him any time she saw him. In time her hormones faded and she became very sweet to him. I decided to keep Dona and one kitten Tilly. I began to let them all hang around together, Tino was stand offish, but fine. One day he was irate, hissing, spitting, growling, even at me. I soon found he had a festering wound on his leg, he went to the vet, got stitches and antibiotics and healed. Since then he has been very hissy, and even whaps the baby on the head sometimes. Generally in the morning he will be nice to the girls, often he will lick the baby and play with Dona, but as soon as he eats he gets grumpy and starts the hissing. He will calm, then after dinner... hissy fits. The cat whisperer said he may have been hurt by a restraint during the surgery, perhaps suffered from the chemicals/medicines, and thinks they hurt his neck when restraining him. I intend on taking him to a chiropractor (when I find one I can afford) and would like advice on homeopathics as well. If anyone out there would be good enough to share their experiences, I would be so grateful. I really want my kitties to be healthy, happy and safe.
Many Thanks in Advance