I would image the area first with plain films and possible an MRI.
A neurology referral can be considered at this time, as various neurologic disorders can lead to protracted vomiting.
GI causes of the nausea can be considered if the neurologic workup is negative. An upper GI series, upper endoscopy, or gastric emptying scan can be considered to evaluate for possible GI causes of the vomiting.
Appropriate GI or neurology referrals should be obtained - preferably at a major academic medical center
Followup with your personal physician is essential.
This answer is not intended as and does not substitute for medical advice - the information presented is for patient education only. Please see your personal physician for further evaluation of your individual case.
Kevin, M.D.
www.kevinmd.com
yes, the nerves that trigger the digestive system are around T-12 (the lower edge of the rib cage). There is a possibility that there is a nerve being pinched. If the nerve was damaged by his injury it can be diagnosed by an electrical study performed by an orthopedic neurologist. If the problem is an intermittant nerve pinch, he may wish to consult a good chiropractor. He should take his spinal xrays and report with him when he goes. The chiropractor may be able to manipulate the spine to relieve pressure at this site and prevent vomiting. good luck