Call 911 or emergency services if you have any of the following:

• Pain in the upper abdomen with chest pain that is crushing or squeezing, feels like a heavy weight on your chest, or occurs with any other symptoms of a heart attack (See Heart Attack).

• Signs of shock (See Shock).

Call your doctor:

• If there is blood in your vomit or stools.

• If you suspect that a medication is causing heartburn. Antihistamines, central nervous system depressants, birth control pills, and anti-inflammatory drugs including aspirin, ibuprofen, and naproxen sodium can sometimes cause heartburn.

• If you are routinely having pain or difficulty when swallowing solid foods.

• If you are losing weight and you don't know why.

• If heartburn persists for more than 2 weeks despite Home Treatment. Call sooner if symptoms are severe or are not relieved at all by antacids or acid blockers. See Ulcers on See Ulcers.

  Kidney Stones Kidney stones can form from the minerals in urine. The most common cause of kidney stones is not drinking enough water. As long as they stay in the kidneys, kidney stones usually cause no problems. A stone may move out of the kidney into the tube that leads to the bladder (ureter). If the stone blocks the flow of urine, there may be severe pain. Symptoms that may develop when a kidney stone moves through a ureter include: Pain in the side, groin, or genital area that begins suddenly and gets worse over 15 to 60 minutes until it is steady and nearly unbearable. The pain may stop for a while when the stone is not moving, and pain often vanishes suddenly when the stone moves into the bladder. Nausea and vomiting. Blood in the urine. Feeling like you need to urinate often or pain when urinating. Loss of appetite, diarrhea, or constipation. Inability to find a comfortable body position. Call your doctor immediately if you suspect that you are passing a kidney stone. Most small kidney stones pass without the need for any medical treatment other than pain medication. In rare cases, surgery may be needed.