### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
I have a ten year old son, for the past couple of months he has been vomiting almost once a week. Mostly in the evening. He will feel fine, then all of a sudden he will just vomit, he feels fine right after he vomits. He never has a fever. And I havent found a pattern asscociated with the food that he had eaten prior to vomiting. Should I take him to a doctor? Could it possiblly be that the vomiting is a reaction to emotions that he maybe feeling (stress/anxiety/nerves) ...I have asked him a couple of times after he vomited if he was thinking of anything before he got sick, or if he was feeling strange...and he has told me NO everytime. Please help! What could be causing this?

### output:

Hello dear. As per your symptoms, i would like to have a detailed history and want to perform a complete physical examination. Considering the fact that he never has got fever and is generally well, means there is no abdominal pain, constipation,loose stools or urinary complaints, no headache, alot of things have been excluded. It can be psychogenic and could be due to some sub-acute intestinal obstruction but in that case there is history of weightless that is quite significantly noticed by the parents.Also, it can be due to Gastroesophageal reflux. I would advise seeing a pediatrician in your town to have a detailed physical examination of the child and also would observe if there is some psychological issue associated with it. Till then, you can start some prokinetic medication like risperidone about 1 tablespoon three times a day before meals and famotidine(poly pep)2 tablespoons two times a day before meals. Hope it will help. Stay blessed :-)