I feel this. I feel like my game goes up and down depending on the day. There was a week before when I wasn't even thinking while training and I was giving people hell.
Now it's back to being back and forth.
The most frustrating thing for me is I'm a small guy. I'd say 90% of the time if someone taps me it's because they were better. But I KNOW that there are a few times when people just use strength and that drives me insane, because I feel like I should be able to overcome that. I hate getting tapped by someone who isn't being technical but just tossing me around. It makes me feel like training is for naught if someone has the advantage of just having better genes.