It's normal. Don't worry. That's because you have a little cold. Because you will feel a little sore after running, and even your back will ache if you do a lot of exercise. Try to breathe for a minute, inhale as hard as you can, and then spit it out slowly. It may be a little hard on the way, but it will be much more comfortable afterwards.

This phenomenon occurs because you have been exercising for a long time, and now the weather should change. Your body has changed a little. (As the saying goes, a long-distance runner spits out this sulk every day, because he runs every day. )

If this happens again, don't worry. Don't sit down yet. Take a few deep breaths. Just right!

If not, call me! )