My husband is 56 years of age, basically healthy, a little overweight by about 20 lbs, but other than that, fine. Lactose intolerant. Anyway, last week on Wed. night, he vomited for 30 minutes. No flu symptoms, nothing. Appetite off. Again tonight, he just spent the last 30 minutes vomiting in the toilet. I am concerned as we have been married for 26 years and never have I seen him vomit like this for so long. I need some help. Thanks.