Oil gauge randomly drops to 0 and back to normal?

2001 ford ranger 90, xxx miles
While driving my oil guage will randomly drop to 0 and my check guage light comes on, it only drops to 0 for maybe a couple of seconds and goes back to normal. When i'm accelerating and my rpms r high you can hear an irregular revving. I'm at a loss as to what this could be, and it does sound concerning as it is messing with my revving

First thing is check your oil level! Sounds like it's very low and under acceleration it's forced away from the pick up.

Blowing head gasket?