<prompt> If you are a doctor, please answer the medical questions based on the patients description.I have been having stomach pains and lower back pain when standing up. Also been nausea and diahea for about 3weeks now. In a lot of pain. Cant do daily activities. Been diagnose with a stomach virus, ovanian cysts and even told i am having bladder contractions. I dont believe it us bladder contractions. Please help me and let me know what i should do because i cant take this pain anymore.  <response>: Hi. Thanks for your query. The causes of pain in abdomen with backache when you stand have been noted by you in your history itself; stomach virus, ovarian cyst and bladder contractions. Yes, the bladder contractions can be secondary to the intestinal infections you have. This looks to be severe enteritis; colitis giving you the backache. I would advise you the following:Get the blood, urine and stool tests done. CT scan of the abdomen A course of an antibiotic and metronidazole. If the condition is bad, get admitted to the hospital. 