Diagnosed with temporal lobe seizures four years ago, but been off my medication after losing insurance so I'm having simple partials. Before during and after I have one my sex drive increases and my mood becomes euphoric. Could it be something else?

Could be from siezur. Symptoms of increased sex drive and euphoric mood after a seizure is most likely related to seizures most likely from irritation of your temporal lobe. However without an examination and history it is impossible to know for sure.