just know that what you are doing is a process and it takes time
not everyone has stones on the first flush, most do not.
everything that you did expell, chaff, sand, etc. is better out than in!
as for the vomitting. I have found that taking aloe vera capsules really helps keep it all down. some people suck on altoids, ginger, alka seltzer gold, digestive enzymes. whatever you have in the house.
i also do the Hulda Clark flush for the Epsom Salt part and then i switch to the classic coke flush for the oil part only and use a naturally sweetened carbonated beverage and it seems to work better for us in keeping it all down.......