nausea after every meal.

hi all . i am 47 year old man with a eating problem . the problem is every time i eat i am sick this as gone on for about 5 years and in this time ive lost 6 stone  i wer 16 now 10 and iam 6ft tall . i used to be well built . weight is just falling off  i cant keep any food down i feel hungry all the time and do fancy some food . but when i eat i feel sick until i vomit  i then feel weak and dizzy  last year i passed out at work throw lack of food . i got taken in to hospital and a lot of tests were done  . camara in both ends and nothing were found  .  I WOULD BE VERY GREAT FULL IF ANYONE COULD HELP OR JUST POINT ME IN THE RIGHT DIRECTION  THANK YOU ALL

[patient915]

Welcome to the gastroenterology community!  I would recommend asking for a gastric emptying scan to check for gastroparesis which is slow emptying of the stomach.  In the mean time you should eat smaller more frequent meals and eat a low fiber low fat diet.