Does he/she exercise a lot after meal? Does he/she cry a lot? Does he/she sleep well?
For Felix, I find him vomit after if he cry a lot or if he play immediately after meal. Besides, I find that sleeping is very important to baby because grow hormone trigger weight and height gain during sleeping.
By the way, how many meal he/she has right now? maybe you need to feed him more frequent, say every 3.5 hr / 6 times a day.
Maybe he/she is teething. I also find Felix easy to vomit when he is teething.
Does he/she starting cereal yet? I find Felix not vomit after cereal even if he play vigorously. Maybe you can try using different method to feed cereal if your baby don't enjoy eating, say using different spoon (big or small) or even bowl. Baby will find it interesting and will be more willing to take in food.
Or you may want to feed 1/2 oz less for each meal and then feed every 3.5 hr.
Do you find him/her anything wrong other than vomit? I also suggest you 同佢睇醫生, 睇醫生 not necessary need to 抽血. But if 抽血 is really necessary, don't worry. Felix had been 抽血 twice when he was just 5 days old and 10 days old. But it is better to know the problem instead of leaving it unknown.
唔該晒你呀.... 我除佐覺佢得嘔前面色麻麻之外, 又唔覺佢有咩問題喎, 我問了健康院 d 姑娘佢地即刻比個醫生我睇,醫生話再過多 2-wk 去覆診睇吓有冇嘔喎, 佢都好攪笑, 再過多 2-wk 都仲嘔我就搵第個好 d 醫生 follow 啦! 仲要話我地呢度唔係比你睇病, 唔會有葯, 你去睇病就輪街症, 鬼唔知咩, 有病都唔搵佢o個 d 淨係見得少少 case 日日屈埋係健康院睇 bb 點發展既醫生啦...
我唔多信 d 健康院醫生, 個個唔係大陸咁o既 look 就有 d 陸口音! 又一 d 愛心都冇咁, 佢用捧睇喉嚨, 跟住 bb 嘔返 d 奶出黎佢個樣好似好驚咁即彈, 之後再睇阿 b 都未嘔, 只係想嘔, 佢又係即彈! 做得醫生都都預佐有呢 d...咁驚唔好做呀..... 之前睇果 d 都唔係咁衰既...
I also find 健康院 d 姑娘 and 醫生"都好攪笑". When Felix was still 3-4 mths old, his bellybutton was still growing outward. I took him to 健康院 for ask to see 醫生for advice. d 姑娘話我地呢度唔係比你睇病,你去睇病就輪街症 . Well, I also knows that. As parents, we just want to get some advise and know if that is big problem which needs to see doctor.