I have a 2000 Camry LE with 143K miles. I just had my oil changed a few days ago and the oil was almost all gone. There were different leaks of multiple fluids according to the shop, and I have to take the car back on Friday. The car has been hesitating and it's riding very bumpy, almost cut off once or twice with the A/C running. Does anyone have any ideas of what could be wrong? And what that could cost?