Car has started stumbling or surging

For about a week now the car has started stumbling or surging after I start the car and it would do it until the car reached normal temperature. Then last night I would start it and it would start and then immediately start surging like it was running out of gas but at the same time I could smell exhaust fumes and would get some white smoke and every time it would try to shut off. I noticed that my headlights were fading from normal to nearly off. I have installed new fuel filter and I have fuel in the tank. Now it will not even start at all. Oh and the catalytic converter has been recently drilled out.