My baby's urine is neon yellow. He isn't taking vitamins, he is breastfed for 9 months now never had this. I've seen his urine yellow and dark but I've never seen it this color. He peed on my tan tile floor and I even saw bright yellow on the floor? can milk disappear within an hour because his previous diaper I changed just an hour begfore hand didn't have a color. I'm so confused. we had no problems breastfeeding all day but now when I tried to put him to bed nursing he kept screaming as if he was in pain. I'm not sure what to think how can it disappear in a hour? he was chugging milk like there's no tomorrow just a little earlier. do you think the milk is like gone? or is this an indication of something wrong causing him pain when he pees? I'm so confused. I tried to take him to a pedi earlier today for a checkup but the asshole manager there was causing all sorts of problems so he never got his check up. oh also he ate broccoli and carrots for dinner (earths best) and he has had a lottttt of gas from it for a hour now, he has never reacted that way to it, do you think the pouch could have been contaminated or just have too much vitamin B in it. PS: the yellow is even brighter in person he's super on edge tonight and won't sleep.