My daughter (9) has been diagnosed with a viral infection which may have caused Mesenteric Adenitis. She has been complaining of a really sore belly for the last week, but the last 3 weeks she has said it has hurt, but not as painful. She constantly gets UTIs, the last one being approx 2 or 3 weeks ago. She has had an ultrasound which has shown an thickened bladder. Could all this be related. The ultrasound doesn t show anything else. She has also lost approx 2 kgs in 1.5 weeks, and is feeling tired all the time. Her appetite has shrunk. She hasn t had any fevers, although sometimes can be really hot to touch, but no temp showing.