Anti-war activist Cindy Sheehan was being treated Friday evening in the emergency room of Providence Health Center in Waco. Sheehan, who has been on a liquids-only diet for 37 days as part of a fast in protest of the war, was described as being gaunt and pale as she arrived at the hospital. An assistant said Sheehan, who flew to Central Texas after a trip with other activists to Jordan to meet with members of Iraq's new parliament, was being treated for exhaustion. Sheehan, whose 24-year-old son Casey died in Iraq in 2004 while serving with Fort Hood's 1st Cavalry Division, returned to Central Texas last week, after purchasing a 5-acre tract in the Crawford area. She again took up her vigil in the area of the president's Central Texas ranch, where afternoon temperatures have been at or above the century mark.