Will you give me some more advice? (Additional info included this time.) (About possible head gasket problem.)

if your seeing coolant on the ground it could be something as simple as hose leaking on it also,it doesn't always have to be a head gasket,if it is you will notice it leaking from around one of the heads on the vehicle,or from the edge of one,you may also notice water in the oil or lack of pressure in the system,there are many other things on that one that can leak besides a head gasket,there's also freeze plugs that will leak and cause the same thing to happen,you really do need to have a shop look at it most shops wont charge nothing to just check it out,they usually will inspect it for free,that would be your best option right now,at least they will be able to narrow it down as to where the leak is coming from,and that would be what you need to know right now,good luck with it.