Get the car to the dealer or a Honda certified technician fast. Do not drive it with that condition much longer. I've seen that happen before. Most times it is the seal that goes around the rear balance shafts gear. It starts to fail and the oil pump can not maintain oil pressure in the engine. The engine will fail due to viscousity break down.

Take the car to the dealer or tech in the morning before the engine wear gets worse. I don't want to scare you but want you to understand how serious it is.

Edit: And another thing, since they are going to have to remove the harmonic balancer, belt covers, and belts you might as well have the belts, tensioners, water pump, and oil pump (since it did leak) replaced since they are already down there. That way you can kill to birds with one stone and get more life out of the car.