Why does english sound like japanese to me?

I'm a born american. I've only been out of the country twice and for a couple of days, if that, but just now, when i'm 17, i start hearing english, and unless i concentrate it sounds like japanese, not literally though. Here's my theory, and you can see if it makes sense. I don't know japanese, except for demo, dome, kuso (i like cursing), arigoto gozimas(u), but that's it. I don't know grammatical structures, sentences, or anything like. However, recently i've been watching a lot of japanese anime, with english subtitles, so i think that the japanese that i am so used to hearing in the anime, and it's typical constructions, or whatever, are so similar to english, i.e. inflection, pace, phonemes, etc. that i get the two confused. The only way i can tell the difference is by closing my eyes, which i just learned means it might be some kind of spin off from the McGurK affect. That's my theory, that it is a another subset of illusions caused by the McGurk effect. You can tell me if that is just silly or not, if you think otherwise please let me know because i'm very curious about my own affliction, and before you ask, no i'm not a narcissist.