I got back from a vacation in Jamaica, and it looks like I have bites from sand fleas. They have puss pockets in the middle of a red, itchy area. And I’m itching terribly. Do they go away — and if so — how long? And how do I treat them and make sure they go away for good?

My husband has had loose, poorly-formed stools for more than a year. He increased his fiber intake, but that hasn’t helped. What do you suggest?

Is there a good screening test for pancreatic cancer?

Keep Your Digestive System in Shape

I am tired a lot, and have been tested for all the usual suspects. I eat fairly well, and get enough rest each night. My doctor told me I was “a little low” on B-12. Could this be the real cause of my fatigue?

I’ve been taking 10 mg of Prilosec daily for several years. The over-the-counter product says you should limit proton pump inhibitors to a maximum of 14 days. Is there a reason for limiting who long you take it?

I had severe pain last night and went to the ER. I had an ultrasound test. It showed my gallbladder was slightly distended (no stones) and the common bile duct was enlarged. My white blood cell count was 11,000. But my other blood tests were normal. Could this explain my severe pain?

I’ve heard a lot lately about probiotics and a healthy bowel. Should I be taking probiotics — or is it in the foods I eat? If not, is taking these in pill form safe?

I have had black stools, and some weight loss. Could this signal a problem?

I get a lot of mucus in my throat. I have to keep spitting it out. Lunch and dinnertime are the worst. What causes this? Can it be treated?

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