Well, those matches not part of your 'natural flow' still count. Plus, it's so weird to even think about a natural flow, you could be at the top of your game and all of a sudden you have a dip in form - is it because of the shrimp you had last night and we should ignore it, or was it because of some mental issues (should we ignore that?), or maybe you picked up a hamstring injury and no one knows, or maybe you picked it up and you do tell people. There are so many niggles, injuries, upset stomachs, and a million other mental and physical things that go unreported and there are countless performances that would be discounted, but aren't, because we don't know about them. And even if you did, you'd have to go innings by innings, day by day and figure out what doesn't fit into your natural flow.
And after a while, especially when you start taking out big chunks - that is your natural flow. If you were **** for 10 games in a row, guess what, being ****ty is your natural flow. No one has a nice horizontal level of performance.
I don't care if you've got a bad stomach or a broken head. If you go out there, it counts because the game does.