Shelf life for tubes in race wheels?

I’m putting my race wheels on for a 1/2 IM this weekend and my paranoid side asks: “gee these tubes have been sitting in these wheels since last year. I wonder if a tube can go ‘bad’?”

So can tubes go bad or am I a big dork?

pump it up and let it sit a day or two to see if there’s a leak
.

I have one race wheel that’s been on the same tube for three years.