Hi...have u had an upper GI done? If it is up high where u suspect I would imagine this would show it.....ask a GI Dr, they would be the best to tell u, as we r only a support community : )
Keep us posted on what u find out.
Good luck
I have had upper gi's. They don't get any barium into your intestines so they don't show up on xray.
X-Ray and Imaging
For hernias that occur internally or that cannot be determined from a physical exam, diagnostic X-ray and imaging would be performed to confirm the presence of a hernia. X-rays are also used for external protrusions when the doctor suspects the presence of a body organ in the hernia. Since internal hernias often share similar symptoms with other unrelated medical conditions, it is important to confirm the diagnosis before implementing any form of treatment. A common type of X-ray would be the multi detector CT (MDCT), which can clearly show the contents of the sac and its exact anatomical location. Common examples of internal hernias that require X-ray diagnosis include the following:
Diaphragmatic and hiatal hernias: Chest X-rays may be performed to see if there are any "shadows" that may signify the presence of diaphragmatic or hiatal hernias.
Spinal hernias: Magnetic resonance imaging (MRI), which provides high-quality contrast between the hard and soft tissue, is usually used to diagnose the condition. However, a physical test involving raising and lowering of limbs may also be performed to further help locate the site of protrusion.
source-
http://www.symptomfind.com/diseases-conditions/hernia-tests-diagnosis/