Am the only one experiencing this?

So basically am a better than average player (~1800 average WN8 with around 2-3000 with the tanks I really like and know how to play) with 20K+ battles.

From time to time there are weeks where I rarely play because it feels like I was new to the game. All battles play out the same. Doesn't matter if my team ends up winning or losing, I just perfrom like a tomato. When this downward trend appears I usually stop playing for weeks (maybe playing a few rounds once in a while to see whether the trend has changed or not).

So after like a month I start playing again, and it just works. Doing everything just like before, but effectively. And suddenly my recent battles are like 2000+ and not around 500 WN8.

I'm not talking about the sh*tty RNG sessions we all get, but something more like a change in performace.

Just interested if anyone has experienced this…?