I am not certain about that , I always think we ere on the safe side and ask the Doc about those symptoms, but if she checks out okay ..yes she could be throwing up because it keeps you with her, by the way you didnt answer if she is with you during the day or at day care ?
So you think she could be making her self throw up.. it makes sense
Could be she just wants to be around her Mom for extra cuddling time , does she go to day care ,is she away from you, it could be as simple as she is not ready to sleep, how long does she nap during the day, that may also be a factor. Children do say that they have pain because they know that it gets them attention, in this case I would say it is warrented, and maybe when she does this, some story telling, quiet story song moments are called for, I always found that quietly singing some old lullabys and nonsense made them nod off . hey you will enjoy it also , its very bonding ...