So I've been getting this pain in my left flank area on and off every few weeks for the past month…

So I've been getting this pain in my left flank area on and off every few weeks for the past month or two but lately it's been every few days. I'm getting worried. Any ideas what it could be? I've tried google but it always somehow leads to cancer soooooo I thought I'd get some opinions and figure out some possible causes. TIA 👍🏻