Why sometimes I am happy and sometimes I am sad?

Hello, dear! People are emotional, sometimes happy and sometimes sad, which is normal. Generally speaking, as long as it is not excessively happy and sad, especially some emotional reactions are normal. As long as it is not excessive, it is normal. I suggest you mediate by yourself. If mediation fails, you can talk to your relatives, friends and parents.

What's wrong with you? Can you explain it to me again? I hope I can help you.