### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
HELLO!I HAVE CELIAC DISEASE, I HAVE KEPT A STRICT GLUTEN FREE DIET SINCE JAN 2011. I CANT EVEN GO OUT TO EAT WITHOUT GETTING SICK ANYMORE. NOW, FOR THE PAST COUPLE MONTHS IVE BEEN HAVING EXTREME STOMACH PAIN WITH STOOLS, VOMITING/HEADACHES OCCASIONALLY, EXTREME LOWER BACK PAIN, EXCESSIVE WEIGHT LOSS, FATIGUE, TONS OF FLOATERS IN MY EYE AND IRRITABILITY. WHICH IM ONLY 30 BUT I FEEL LIKE 70! 57 DOWN TO 121LBS NOW. I THOUGHT I ATE VERY HEALTHY! DONT DRINK OR SMOKE. BUT I DID SMOKE WEED FOR LIKE 2 MONTHS FOR RELAXING! BUT STOPPED... ;-(ALSO WHEN I GOT DIAGNOSED WITH CELIAC SHE SAID MY PANCREAS WAS FAILING.WHAT DO YOU THINK COULD BE WRONG NOW!?1?

### output:

Hello! Thank you for the query. There is no straight answer for your questions without some tests. It can be pancreas indeed. Due to pancreas insufficiency, it does not secrete enzymes digesting fat. It can cause fatty, bad smelling stools, abdominal pain, diarrhea, weight loss. Such stools usually float. Your symptoms may be also caused by partial bowels' obstruction due to Crohn's disease. It can also give similar symptoms. Abdominal pain is like cramps. Please visit your doctor as you do not seem to be improving. Abdominal ultrasound, blood work, pancreas tests, liver tests, urinalysis and abdominal X-ray should be done at first. Colonoscopy might be necessary as well as abdominal CT. Hope this will help. Regards.