edgarcat, just to toss in a curve ball related to sleeping and not at all to feeding, but do you swaddle edgarkitten? and if not, may I strongly advise it? i found that without swaddling my eldest would go to sleep, and as she descended into deeper sleep after 2o mins or so she would sort of throw her arms out, which would wake her up, and then she would be furious. by swaddling they sleep much better and longer.
also your description of him mieowing all afternoon sounds to me like he is cross and overtired, not necessarily hungry.
just a thought...