Hi.
Thanks for your query.
Read your history and understood your problem.
IT is good that you already taken an opinion of a Gynecologist and undergone trans-vaginal
ultrasonography. This rules out a Gynecological problem like related to
uterus, ovaries and tubes.
This means that we have to find a cause somewhere else.
I would recommend the following:The routine blood, urine and stool tests.
X-ray of the abdomen in standing position to find out the evidence of an
intestinal obstruction.
Enteroclysis to find the site of obstruction and its effects.
CT scan of the abdomen for any mass.
In some situations we can certainly go for diagnostic
Laparoscopy and do any procedures if fond on direct visualization.
Once a proper diagnosis is made , treatment will be an easy task.
Wishing you an early diagnosis , proper treatment and wish you an early diagnosis and proper treatment towards cure.