Won’t eat oatmeal anymore

Alexis • Mom to Rocky Bruce IV 3/1/19 and Lindsey 1/5/21

So we started feeding our son oatmeal at about 5 months and he loved it. He would get so excited about it and eat so much. I still mainly breastfed but did oatmeal right before bed. Now all of the sudden at 6.5 months he won’t eat any. He just spits it right back out and almost gags. Why is he doing this? Why won’t he eat it anymore? We tried introducing some carrots recently and he hasn’t liked them. Does this have anything to do with it?