Hi.
Thanks for your query and an elucidate history.
You symptoms of severe pain in abdomen, with acidic stools with froth, weakness and affection of the body and the joints are suggestive of the following:
Severe form of
gastroenteritis with toxemia giving the other symptoms of joint pains and others.
I would advise you the following:
Investigations:
*Routine blood investigations like Complete blood picture, blood sugar, urea, creatinine, liver function tests,
thyroid function tests.
*Urine -routine and microscopy
*Stool: routine, microscopy, occult blood, culture and sensitivity.
*
Ultrasonography of abdomen,
*Colonoscopy
These investigations will help us to get a proper diagnosis and plan for a right treatment.
A
second opinion of an Orthopedic Surgeon can certainly help to rule out primary problem of
polyarthralgia.