Virus in my brain?

I'm afraid about what happened to my brain's Chess engine! 3-4 days ago I was at 1665 and now I'm 1551 rated in standard Chess. I suddenly started loosing games. 5-6 days ago, I was playing very confidently against 1650-1720 rated opponent and was holding a nice position and now I'm so frequently loosing from ~1400/~1500/~1550 rated. what happens in my games is, my opponent is trying simple tactics and I'm defending and defending and loosing pieces one by one. Any ideas on what should I do?

Are you an android?

for normal-ish people having big loosing streaks Happen and have nothing to do with virus's.

I wouldn't pretend to know why you stop seeing the chess tactics you saw days or weeks ago- but I do believe you need to continue to solve chess puzzles, and study chess to stay sharp.

I've also noticed that if you become sick or have problems with tiredness you can ruin a good rating.

1 Don't panic!

2 Don't put so much pressure on yourself: remember that you play chess (mainly) for fun.

3 I wouldn't worry too much about rating going up and down over a period of a few days. 

4 work on your tactics!

I think you had BRAIN FRIES.

I am playing opening/strategy that I named THE BRAIN FRY ATTACK.

I think I never played you, but even tough you may had these kind of trolling in chess.

See my thread below: I have proofs chess is all about trolling your opponent.

https://www.chess.com/forum/view/off-topic/chess-is-all-about-trolling-your-opponent-my-conclusion-and-i-have-proofs

In this other thread I show something about my BRAIN FRY ATTACK, specially pages 54 to 65:

https://www.chess.com/forum/view/game-analysis/the-most-interesting-game-of-chess-was-played-here-in-chesscom?page=54

Here some chess magazines covers mentioning this attack:

Outstanding work!!