need help guys, i have a 2003 wrx and last few days car has been overheating badly with coolant being used withing a matter of hours, though it might be a headgasket gone but there's no bubbles in the radiator or coolant overflow tank,oil looks fine aswell it doesn't have that milky look to it, would appreciate any help or suggestions, thanks

I recently had overheating and loss of coolant, not a major amount but noticeable. No milky oil either! Rad hose blew off to while testing. Turned out to be blown headgasket unfortunately caused by age deteriation, dodgy thermostat and a notchy water pump.