Three Weeks Old!

She's growing up so fast already! She now weighs 8lb 6 oz and has grown another inch long and another inch around her head! Unfortunately, she out grew all her cute bows, so we will have to make some adjustments. I can see those cheeks getting chubbier by the day. The older she gets the less I think she looks like either of us in particular, but a profile shot always reminds me of her daddy (at least the lips as seen in pics). We had a bit of a rough week this past week: non stop crying for 5 days. I'm taking an antibiotic for mastitis, which I thought might be up setting her. She tested positive for blood in her stools. One ped doc said he thought it was the meds and to formula feed until I was done. So, that's what I've been doing. She's much happier on the formula. But at my follow up appt I saw another doc and he disagreed with the first saying the meds have nothing to do with it and that my baby is just colicky. So, I am very confused. Just wondering if anyone has had an experience or advice about this situation. I am going to try to go back to breastfeeding tomorrow as my meds will be finished. I am so hoping I do not have a colicky baby. Those 5 days were a nightmare. We'll see how it goes tomorrow...she sure is cute though.