My engine is misfiring?

Shakes or Wobbles problem
2002 Honda Civic 4 cyl Manual 179, 00 miles

Hello, I have problem with my 2002 honda civic dx coupe. It is misfiring and I only have been feeling it when it is at idlle. It shakes constantly whenever im idling and it has also begun to do it when I start the car in the morning or anytime during the day. The other thing is, my check engine light has not come on once while it does this, therefore it does not give me code of any sort. All of my spark plugs are fine, There is not a vaccum leak, and The hoses from the rear to the front are good and I have checked the evaporation system and used a spray on the throttle to check for any leaks and have not found any. And I really don't know what else to do. Please advise, Thank you!