Shots and Sitting up

We just took Kyle to his six month old appointment. I can't believe he turns six months old tomorrow! He can currently sit up for a few minutes at a time! He mastered that last week at five month three weeks old! Today at his doctors visit he was 21 pounds (93 perc) 44.5 inch head (70 perc) and 26.5 inches tall (50 perc). So he's really fat and has an average head and height! People can't believe how big he is when they hold him. All the nurses were gathering around loving on him at the office. They kept calling more nurses over to see him! Then they called the nurses' advisor over and she couldn't help but fall in love with him! It was so cute but kind of embarrassing! He got three shots and cried for a second when they went in but was fine when I picked him up. I told the doctor that he still wakes up a couple times a night, but he used to sleep all night. He suggested to feed him a big dinner of rice cereal and veggies at dinner, not nurse him until bed time so that he gulps tons of milk down. We will see if that makes a difference! I doubt it...