Does anyone else's bubba put their hand in their mouth and make themselves gag? My little girl puts her hand in, gags,…

Does anyone else's bubba put their hand in their mouth and make themselves gag? My little girl puts her hand in, gags, takes it out then puts it straight back in! She's made herself vomit a few times too.. Anything I can do to stop it or is this just something she will keep doing?