My 1mo baby girl always vomit after burp/feed. Am I giving her too much? She's drinking 100ml~110ml (fm)

Does she drink this amount per feed? Or through the day? At just one month, her tummy is still really small so if it's this amount per feed, maybe it's a bit too much? Try reducing a bit and see if she does't throw up so much. Also, it's normal for babies to bring up some milk after a feed. If you think she's bringing up way too much, it's better to see a doctor, given how young she is.