We didn't add a second meal, until 7 months. I will add a third meal sometime between 8-9months. Bottle is definitely most important though, food is just for fun right now!
Most likely it's teething. The girls only get 1 or 2 meals a day of solids. My main goal is to get the formula in them so if I have to choose I go for the bottle.
We haven't yet. I'm hoping to hold off on adding lunch until after he turns 8 months next month. We just started him with 2 meals a day about 2 weeks ago.
Re: when did you introduced the 3rd meal?
I still have not.
And, I have no clue when I will.