the temperature keeps on rising,no heat from the heater.I have done a pressure test,head gasket is fine.I have checked the thermostat & radiator both are working 100%.
Possibly either an airlock in the cooling system or the water pump failing.
If you dont know how to bleed the system or check/renew the water pump buy a Haynes manual for your car.
Try not to use the car if it is over heating or you run the risk of warping the head and blowing the head gasket.