Tiny gray guinea pig with white belly, lost

Yesterday around 4pm I lost my tiny gray guinea pig near Riverside Park on Hayes Ave in Sandusky. He’s about the size of a hamster, with soft gray fur, a white belly, and a distinct tan stripe running along his back. He wears a pink harness with a tiny bell, and he’s usually tucked into a tote bag when we’re outside so he doesn’t wander. He’s shy and pops into hiding when loud noises happen, which makes me worry. This little guy is part of our family and holds sentimental value to me; I’d be incredibly grateful to get him back. If you’ve seen him, please text me and I’ll meet you in the Sandusky area.