The antifreeze keeps disappearing I don't have a leak had it checked out So where could it be going?

First check your oil! make sure its not milky looking! Oil is yellow to brown, but milky is whitish and would mean water is mixing with it. If so you can replace your head gasket if head isn't cracked or warped. If it is cracked or warped and your on a budget, then don't fret, you can use higher end head and block repair at autozone, just keep a eye on your fluid levels for a while after the "bandaid repair of 20-40 bucks vs hundreds. Now if not milky how much are you adding? Do you have a overflow reservoir? How many liters is your engine. my 2.2L engine takes about 2 liters or sort of around 2 gallons, but not necessarily all at once, because the thermostat in the cooling system is shut until the engine warms up, so about half the coolant could still be low if you filled it up. warm it up to operating temperature and you'll see if coolant or water is spraying out of the cap. (caps go bad over time and steam comes out and water is lost.) or there is a split in a hose and when car gets warm it builds up pressure and you can hear or see it spraying out somewhere vs when its cool it may just drip or nothing even depending on how small the leak is still. If you see none of the above then once it cools check levels again and fill again. it should be fine now.

Everything seems to be fine on the car, it's every few months the fluid seems to go low and over heat it was pressure tested and no leaks so if you have any info on this please email me back at dwayne.wetzel1@gmail.com

If you pressure tested the car but it is still losing coolant try using Alumaseal in the radiator which can plug up tiny leaks.