Vehicle ran fine when I drove it to work. When I went to leave it wouldn't turn over no sound except for a light click from under the hood. Tried to boost it still nothing . Since it is a manual I got a push start .

What is your question?

On the way home the vehicle started jerking really hard and I have never had any problem with it in the past. Although I had noticed the service engine light flash on and back off in the prior weeks