We had quite an eventful Friday... Addy's doctor appointment went well, she is now 13 lbs 14 oz and 25 in. long. That puts her at 75% on the scale for both height and weight! She had to get 2 shots, which she really didn't like, but was easily comforted when we picked her up. She had a normal afternoon, eating, playing, and sleeping like always.
Then, when I woke her up from her nap at 8 pm I changed her diaper and she was still acting like her normal self. When I sat down to feed her, out of the blue, she projectile vomited all over herself and me. Then she really scared me, she became extremely lethargic, unresponsive, and very pale in color. I tried to get her to open her eyes, and she wouldn't. Steven was at work, so I ran Addy to our neighbor's house, she is a critical care nurse. She took Addy's pulse and it was only in the 90s when it should be around 160 beats/min. My neighbor agreed that we needed to get Addy to the ER. I'm so thankful for the wonderful neighbors that we have! They drove Addy and me to the ER and Steven met us there. By the time we got to the ER, Addy was doing much better, her color had come back and her pulse rate was back to normal.
They took an x-ray of her stomach to evaluate gas. They said that she had quite a bit in her stomach, but they guessed that she actually relieved much of it when she vomited. The Dr. said that sometimes when babies cry really hard they can take in too much air and it can get trapped in their stomach and cause a reaction like this. The only thing that troubled him was that it happened 5 hours after the shots. He said it would typically happen much closer to the time of the shots.
The Dr. diagnosed Addy with vasovagal syncope. I'm going to give the clinical explanation of that: A vagal reaction is a reflex response that causes the pulse to slow down or the blood vessels to dilate. This causes the blood pressure to fall, reducing the blood flow to the brain if you are standing or sitting. That results in dizziness, near-fainting or fainting. And syncope means fainting.
The only thing the Dr. suggested we do is give Addy Tylenol every 4-6 hrs for the next 48 hours. She has returned to her normal self completely. She slept well once we got her home last night, and she's eating like normal. My plan is to call Addy's pediatrician and see what she thinks. I'm just wondering how likely this is to happen again and what we can do to prevent it!