(Yuhan TV) I hurt my calf while exercising on a cold day. :(

I thought it was a bit too much, but my muscles suddenly shrunk.
Fortunately, it's been about a week, and it's gotten a lot better, so I can run a little bit. I was really surprised and embarrassed because it was my first time experiencing pain this badly. I looked it up on RUclips and it says it's also called a tennis leg, but I think it's not serious, just a mild injury. It was really different from cramping. From now on, I will wear protective equipment well, be careful, and exercise. Diet... it's hard^^;;