Low oil pressure
Low cylinder pressure
Anti freeze coming out of the tailpipe (sickly sweet smell)
Water in oil
Oil in water
Frothing or bubbling in radiator
No start, internal engine damage.
A puddle on the ground and an overheating engine.
It is possible, but very unlikely.
Overheating can damage any seal.
How is your heat? Overheating can cause damage generally to head gasket, cylinder head or thermostat. See other posts regarding headgaskets in this forum. answer you can damage whole engine thru overheating but if u had no coolant leak when overheating occurred, u need to check water pump and thermostat in engine
On an interference engine the pistons can hit the valves. That will cause severe internal engine damage.
The 1.8L is not an interference engine, so you should not have internal damage. The 2.0L is an interference engine. Internal engine damage is likely.
No ,more damage will occur including overheating
Overheating an engine can seriously damage the heads. Check for water in the oil. It may look milky.
Overheating can warp and crack metal heads and blocks, burn and tulip valves and break down the ability for oil to lubricate the bearings.
Antifreeze if you get an internal leak in your engine it could ruin the motor
Possible internal engine damage.