Hello @subhi

Welcome to Connect. I'm so sorry to hear about your daughter's struggles. Here is some information from Mayo Clinic, about mesenteric lymphadenitis or mesenteric adenitis (which is very similar to mesenteric edema): http://www.mayoclinic.org/diseases-conditions/mesenteric-lymphadenitis/home/ovc-20214655

Although it is in a different group on Connect, you may wish to view this discussion:
– My 11 year old has mesenteric adenitis. Chronic Migraine and dizziness https://connect.mayoclinic.org/discussion/my-11-year-old-has-mesenteric-adenitis-chronic-migraine-and-dizziness-for/

In this discussion, "Deficient disaccharidase & inflammation in small intestine" https://connect.mayoclinic.org/discussion/deficient-disaccharidase-inflammation-in-small-intestine/, you will meet @fa7100 and @jay_baruch who may have more insight for you.

I'm also tagging Connect's Mentor, @kariulrich as she may have some thoughts to share.

@subhi, is your daughter taking any medication to help with the stomach pain? Did the doctors rule out viral infection, such as gastroenteritis (stomach flu) as an underlying cause?