Toyota Camry 2.2 4-cylinder engine vibratesand looses coolant. there is is also high pressure in the cooling system which causes it to leak out?

Suggest blown head gasket with coolant leaking into one cylinder. Check colour of oil. If emulsified (mucky brown) then definite leak. Also, remove HT leads one by one to identify whether all cylinders are firing. If one is not firing, remove spark plug, then remove all other HT leads and turn engine over. You may find that coolant shoots out of the cylinder, indicating leak into that cylinder.