For about almost 10 years I have gotten sick at my stomach & will throw up but only at night. It is not every night but now it is getting more frequent.I will feel fine all day long & then eat at night whether its salad or a burger I will feel ill about one to two hours later & end up dry-heaving or throwing up every time.It usually happens at least five to eight times a month.My husband who is an R.N. said it could be my gallbladder but I don't eat a lot of greasy foods & I try to avoid stuffing myself full of food.I am a healthy 29 year old but I do have a lot of allergy things also going on someone said sometimes that all of that is related to your digestive system is this true?