Knee pain at night is a common condition caused by injury, arthritis, bursitis, gout, and more. When it happens at bedtime, it can also lead to insomnia, which can leave you exhausted during the day.

If you have an itchy scalp at night, common causes like psoriasis or eczema may be the first things that come to mind. However, other reasons for your itchy scalp include hives, dandruff, lice, and ...