weel today i decided to change my oil pan gasket on a 94 accord lx and when i pulled the pan off, the oil had milky substance mixed in. i know that usually means the coolant is mixing in somewhere, but there is no milky residue on the dipstick or under the oil cap. does this mean i have a bad head gasket or i should look somewhere else? also, im leaking coolant by the oil pan, right next to it, most likely bad water pump. could those two be related?