Can't update apps anymore

I recently updated my iTunes account by changing the credit card that I was using. I had previously been using my Turkish credit card, which meant that I was using the Turkish app store, and I put in the details for my American credit card which naturally switched me to the U.S. app store.

However, now when I click "check for updates" it tells me there's nothing to update, even though it's displaying 172 apps that can be updated. Y'know, the gray circle with the number showing apps that can be updated.

Anyways, I was just hoping that someone could help me figure this out. How can I get it so I can update my apps? I understand that I'm using a different app store, but I thought that since the account was the same that there wouldn't be a problem. What can I do?