PGAD or overstimulation

I’m 16 and I have masterbated for a few years now but today something was off after I was done orgasming I kept going and had another one I stopped and i felt normal but then my clit kinda started to throb and even feel like it was painful or even uncomfortable and pulsing but also lowkey had pleasure? Idk really how to describe it but it’s never really happened before until toda. I’ve heard of PGAD and I was wondering if it can be caused by masterbating too much or is it just sensitive??