STATES ARE FACING BIG FISCAL CRISES, GOVERNORS REPORT
National Governors Assn fiscal survey of states says plunging tax collections and soaring medical costs have created worst fiscal problems for states since World War II; says problems will force governors, many newly elected, to propose politically sensitive tax increases or drastic cuts in services; says Medicaid and other health benefits account for 30 percent of state spending and grew in 2001 by 13 percent, largest increase in decade; other findings detailed; assn executive director Raymond C Scheppach predicts huge cuts in Medicaid in coming year beyond cutbacks already enacted; says at time when revenues are declining, such growth is unaffordable and unsustainable; governors and state budget officials say fiscal condition of states is more dire than condition of national economy; photo; map (M)