我平時沒怎樣做劇烈運動,但我某天覺得膝蓋感覺痛楚

Need more information before I can give you some suggestion. E.g. how old you are?
There may be chances that you may have sprain your ligaments. It doesn't have to be caused by exercise. There are so many soft tissue in and around the knee, it's not easy to identify which one gives you the pain. If it still bothers you after some rest, maybe you can go and see a physiotherapist.

想快d好,最好去做物理治療
起碼物理治療師會幫到你同教你平時可以點做
試下呢間物理治療~唔錯~
免費預約上去做free check,做下評估先都可以

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