Calf pain?

Lily

It started yesterday during work and continued into today. In my right calf, there is a huge amount of pain. It’s kinda like a Charlie-horse but not exactly. I can still move it perfectly fine, it just hurts. I walked from my house to the corner store and than back, no more than 5 minutes all together and my leg hurts a ton. It’s like an intense muscle pain in my entire calf. What can I do and is this normal?