I dont know what to do

w • Baby #1 - born 08.28.17 Baby #2 born 03.24.21

I'm a first time mom so bare with me.

I have a 16 month old daughter whom in the last month or so is throwing up way more than she should. And not just when she chokes. When she cries so hard she pukes. Sometimes she will gag herself. And sometimes she just does it out of the blue. Happened twice yesterday. and now again today. Is there a specialist I can bring her to?