Pop superstar Cher is seeking treatment at the same German clinic as her cancer-suffering friend Farrah Fawcett after falling ill with a rare stomach disorder, according to U.S. reports. The 61-year-old singer flew to Europe after struggling to cope with the crippling pain, and was told she has diverticulitis, an inflammation of pockets in the intestines. A source tells the National Enquirer, "Cher's been in agony for weeks. She's suffered terrible abdominal pain and consulted a variety of doctors, including MDs, alternative doctors and even Eastern mystics." German doctors have given Cher a special high-fibre diet they hope will counter the inflammation. The disease causes bloating, pain and digestion problems. In most cases, diverticulitis can be treated with a special diet and anti-biotics, but it can require surgery to remove inflamed sections of the intestine.