Calves rly sore?

On Sat I ran 6 miles, Sunday my legs were kinda sore but eh I did legs/stairmaster but today my calves r so sore I couldn’t rly workout & my legs felt like a million pounds. It doesn’t feel like shin splints I’m moreso just soooo sore but idk if it’s normal?? Like I rly couldn’t walk bc of how sore/tired I was