In the dark, look in your mirror when somebody is driving behind you. Often steam in the exhaust from a head gasket leak is easy to see at night. The headlights light it up some.
In daylight, it looks like white smoke if its bad enough.
How long does it take to overheat when you start driving with a well cooled off engine?
I'm wondering how fast your coolant disappears.
Does the engine oil on your dipstick look like a banana milk shake?
There are several ways for a bad head gasket to show itself. Sometimes, the cooling system builds up great pressure quickly and forces coolant out of the radiator into the reservoir, and then out of the reservoir and onto the ground while you're driving.
To see if that's happening, attach a piece of hose or tubing to the reservoir overflow and direct it into a plastic juice bottle. If it's full of coolant, you'll know how it's happening.
Cylinder head gaskets don't "blow". The engine overheats (actually the aluminum cylinder head overheats)
because of coolant loss, and then warps. Then, the leak starts. The repair is more than just changing the cylinder head gasket. The repair is to unwarp the cylinder head In a special oven, or replace the cylinder head. It's rather expensive.