I was practicing kicking exercises and now my knee is giving out?

I was practicing kicking exercises by watching some youtube videos and now my knee is giving out. My knee just seem weak now, and giving out when putting lot of pressure on it. Well there is no pain, but my knee is giving out. Anyone here know what could have happen to my knee? It had been like this for month now. Anyone else here had this problem?

JoKyoNim2021-04-07T15:57:51Z

SEE a doctor. Second learn to kick correctly, other wise you will injure your knees and hips. Third stop kicking air, you need to kick a target.

This is what you get for trying to learn from video. A real instructor to correct your kicking and techniques is needed.

John2021-04-06T22:30:46Z

Sounds like you need to see a doctor.