Marcella, did you recently
Marcella, did you recently fill-up? If you did and then the engine started running badly, it could be the gas. Area auto stores usually will check you OBD (onboard diagnostic) to see if you have any codes stored. Is your check engine light on? We have Auto Zone, Advance Auto, and O'Reillys in the area that will check for stored codes. Around here they do it for free. I went by Auto Zone once for this service. They found a code....luckily I just needed a new gas cap. You might swing by an auto parts and ask if they have this service and if it is free. I like to do the easy stuff first. Have you checked your air filter? Also, any loose vacuum hoses may cause a rough running engine. Good luck!