Hi, Welcome to healthcare magic I have read your query and as you haven t mentioned such symptoms occurring every time after eating cereals,pastas etc. in my opinion the diarrhea and the pukish feeling is due to indigestion caused due to the inadequate chewing of foods like sphaggetti,so I would advice you to chew the foodstuffs slowly and don t directly swallow it, drink adequate amount of water,eat soft foods like rice,juices which are easy to digest. I advice you to consult an gastroenterologist if the symptoms persist every time after certain food intake like cereals,pastas,sphaggetti,etc.to carry out blood tests to rule out any other cause. Hope this answers your query. Regards, Dr.Tushar Tamboli