My mother in law is 80 years old and has Alzheimers for last 5 years. She is in moderate stage now with aggression, confusion and short term memory loss. She is highly diabetic and loves drinking juice and bananas and we hide it from her. But in the last month or so, she has lost interest in it. I also notice she is not eating as before. She takes iron tablets, so her poop has always been black and small for the last few years. Her tummy has suddenly increased in the last couple of weeks, inspite of reduced eating. She wears a size 14 that fitted atleast 2 weeks ago, but when we tried the same size now, it doesnt fit and then we bought the next size and it doesnt fit. A month back we found a little blood in her underwear and took her to the doc but the UTI tests came out fine and doctor said an ultrasound for bowel was not needed. Is this type of bloating common in Alzheimer's patients?