Vehicle cooling system loosing water, foam in engine oil and had a new head gasket 9 months ago

Warped head & or blown out head gasket or both
Check head for flatness as may need to be resurfaced before fitting head gasket

if the job was done properly , re-torquing the head bolts is not necessary
what is very necessary however is to clean out the stud holes and threads before refitting the head and applying thread lubricant to the stud threads
the problem is when there is oil or water left in the holes before fitting that muck creates a false torque reading
the setting is reached but the head is still loose so re-torquing the studs will sill cause that hydraulic lock situation and the head will still be loose
also all head studs are not always the same length so a stud will bottom out at tension but again the head will be loose
and lastly, head gaskets have a sealant applied that glues the head to the block on operating temperature and that will now be destroyed by the oil and water
all of this is explained in detail in the workshop mmanual

In many cases of gurgling cooling system, you have a possible head gasket problem starting and the combustion from the engine is pressurizing the cooling system. Check your cooling system thoroughly for evidence of a possible blown head gasket.
Are you loosing cooling system water?
Is your radiator overflow tank being pressurized excessively by the engine. Headgasket problems can sometimes put some much pressure in that overflow tank that it begins to bulge outward.
Check the oil and look for any white/greyish milk shake consistency fluid on the oil fill cap or on the radiator cap. Keep a close eye on your oil and water levels if your gurgling sound continues. This is not normal and again, usually is a sign that there is a possible leak between the headgasket and a water jacket on the head.
Did you overheat the vehicle anytime soon? This will many times breech a head gasket between water jackets and begin spraying water in small amounts right into the engine cylinders, while it pressurizes the cooling system and makes gurgling noises.

Change the radiator.

Sounds like water in the oil. Head gasket

Only way to give you a "dead on" diagnosis would be to do some hands on testing. In general, overheating caused by a cylinder head gasket is accompanied by coolant loss out the tailpipe or into the engine oil. You can have the cooling system dye tested for hydrocarbons. . That would give you a definite answer as to the head gasket condition.
Flushing often is not effective in clearing a radiator. The chemicals that were used in the past have pretty much been banned. Radiator cores are not made from copper or brass either, so chems are generally too mild to work. Flushing simply cleans the core passages that are flowing and goes around the ones that are obstructed. Frontal area on modern vehicles is very small so radiators have very little margin for safety and once partially plugged, will give you problems.
If your electric fan is coming on when it should, and the hydrocarbon test shows no problems, take a second look at the radiator and go from there. Also make sure if the cooling system has bleed valves that all air has been purged.
As far as $2,000 for head gaskets, seems a bit high but if that's the going price in your area, I'd probably not do the job unless the remainder of the car is in exceptional condition.

This is typically a sign of a bad head gasket. You may want to check your oil for water / antifreeze. While oil in the cooling system is non-damaging, water in the crankcase oil can destroy the engine. You say the head was recently reconditioned, it may still have problems that were not fully corrected and may need to be replaced. I wish I had better news for you...

If its just condensation in the oil cap or dipstick, to some degree its normal. However if you have water in the oil and its very creamy in texture, its probably a head gasket leak, or cracked head. Its important to get it repaired soon, or total engine bearing failure will result.

You may have a bad water pump, a bad coolant transfer tube behind the engine or a leaking head gasket. The foaming may indicate the head gasket. I would take it to a mechanic and get the head gasket integrity checked out.

yes.It has.You should have leveled the gasket at a machine shop,have you done that?If not then that's why.