Neutral thoughts?

Hello! I understand that every feeling has a preceding thought, but does literally every thought have an emotion that follows? I just did a thought DL, and I thought it would be interesting to see what feeling was attached to each thought. I actually couldn’t come up with one for most of them. They were all very “benign” thoughts, and it got me wondering if there really isn’t a feeling associated with them, or if it’s just very subtle and I’m not quite that perceptive. Thanks!