Caryl, this could be because you just changed the dose. So, give it time to figure itself out and see what happens.
I'm not worried about it yet...seriously
Regarding raw food, it's actually not as icky as you may think. You can buy it, you don't have to make your own. Here's a thought and this is what I recently did.
I went to Nature's Variety website and signed up. (You need to put in the name of a store local to you) and then they will send you a coupon for bogo - 3 pound medallions.
It's a simple way to try it out without a huge investment.
OR you could go to a local store and pick up the "sample" size - I think it's about $5/6 for 12 medallions. Again, another good way to try it without too much investment.
I take a few out and put in baggy in fridge to defrost. When ready to use, I add lots of water and break it up till it's mushy/puree like. Then serve. The first couple times - no interest, but now it's being eaten.
You can also mix the puree into canned food and see if that works. I kept it separate.
It's an easy inexpensive way to try it out.
Additionally, if you go on supply closet, there was a post about free powdered instinct. Sign up for that, they will send it, with instructions. But you just mix the powder into ground meat and serve.