98 2.4L Coolant Boiling Over

The coolant is boiling in the overflow bottle and recently started spilling out the overflow spout of the bottle. What's peculiar is that maybe a month before this (and still today) the oil light comes on until the car is warmed up pretty good. At first I thought it was a bad oil filter because I first noticed the light right after I did an oil change, so about a month later I got around to doing another oil change just in case. The light still came on. The head gasket was changed from factory stock to the metal gasket 2-3 years ago. The car has 98k miles on it. Any ideas? Thanks.