more than one orgasm

Hey guys so I've been masturbating for a couple months now and I'm good at getting myself to orgasm, and when that happens like every thing in my body will clench kind of and I'll even jolt forward a little bit. But anyway after that my clit and anywhere else where I rubs becomes too sensitive for me to keep going, so I can't keep going for more orgasms. Is this normal? Do I just have to push through that?