Did my low pressure gauge flash because I had nearly no oil left?

So my car has been acting funny lately but I've noticed a sort of rattling more recently. Then after leaving work tonight my Low Pressure Gauge flashed for a second or two. So when I got home I checked my dipstick and sure enough I have neglected my oil level. So I filled up my car with oil and drove it around for a few minutes and didn't see the gauge flash again. Do I have anything else to worry about? I mean I know you guys can't say anything for sure and I'm going to see a dealership my next day off. But just looking for some previous experiences. I'm hoping that the problem is gone now and that was that. But yea, never that easy.

If it helps, honda Civic Si 2007

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