Our little girl is 6 months!

When I took Brooklyn to the doctor for her 6 month shots, the nurse asked how much I thought she weighed. Well being that at 4 months she weighed 13lbs. 12oz. and has grown so much since then, I said 17 lbs. The nurse said "nope, she's 14.lbs. 14oz." I couldn't believe it, I thought maybe I don't feed her enough or something. She was 25.5 inches long. The doctor said she was in the 25 percentile for her age, but nothing to be worried about and I wasn't doing anything wrong. He asked if I feed her solids and I told him that I've had her on rice cereal in liquid form for a little over a month cause I was afraid of making it thicker. But now it's thicker and she loves it. I started her on oatmeal yesterday and she loves that too. She grabs the spoon and feeds herself. A change of subject here, she's been sick ever since that appointment with a cold. She coughs all the time especially when it's time to go to bed. The other day at my parents house she started choking and her lips turned dark blue in a matter of seconds. It was so scary but then she caught her breath and was ok. She has lots of boogers too. In fact, she loves the booger bulb. Every time I go to use it, she stops what she's doing, looks up to let me pick her nose, and then smiles really big when I suck them out. It's really cute. Another change of subject, after I feed her she like to stand up and look over my shoulder and scratch the couch.Oh and she wont take a pacifier. Anyways, she does new little things everyday and it's so fun to watch!