Only horny when ovulating?

Like Im not impossible to turn on other times but I seem to be neither here nor there about sex most of the month and then the week of ovulation i turn into a straight up freak. Im not into casuql sex but i feel like i want to grab any cutie and fuck them for DAYS straight. Like im sure this isnt normal? I am getting evaluated for PCOS so maybe hormone issues related to that? Or does everyone feel this way?