Engine just started shaking?

Hello,

As the spark plugs become worn they will start to misfire over time.
Since the engine light is on, scan the vehicle and retrieve the fault codes. It can help pinpoint the issue.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Keep in mind that engine can misfire also due to having bad spark plug wires as well as ignition coils.

Inspect the spark plugs. Check for wear and gap. They should be gapped at 0.060 in.

https://www.2carpros.com/articles/how-to-change-spark-plugs

I have included some helpful information on spark plugs for your reference.

Please let me know of any questions.
Thank you.