My Wolf is Hungry

Okay, has anyone else noticed an issue with pet happiness since patch 3.1 rolled out? I seem to be feeding my wolf a lot.

Prior to 3.1 I was raiding with a raptor and I didn’t seem to have to feed him much. Now I’m running with a wolf and I have to feed him all the time. I usually just buy stacks of food from the vendor. I seem to be replenishing my stores more often now.

I’m concerned that maybe he has a tapeworm or something and I may have to put him down.