I don’t know why .....I’m so worried I can now eat big bites.. don’t have to shew my food a lot.. and I’m totally ok eating fast not slow as the beginning.. without any discomfort..I feel it’s too early to loss the effect of the surgery .. my biggest fear to start gaining that early...

You still have the ability to choose to eat slower with smaller bites.

Eat smaller bites and chew slowly. This will help. Also, increase your water intake.

Just because we "can" doesn't mean we "should". You know? This is where the retraining and committing to new habits really comes in. Go back to basics. If you're scared now, that's good! Rather be scared now in the early honeymoon phase than 2 years out when you're eating as you always did prior to surgery and gaining like a beast.