This Is About My Husband. 19 Years Married. One Daughter

This is about my husband. 19 years married. One daughter 13 years old.
My husband suffers from explosive tantrums here and there. He fights and arguesee for insignificant things.
he imagine problems. He is worry all the time about money and the future. Our daughter and my husband argue at the same level. The other day he hit me in the face (first time he hit me) in front of our daughter. I recognized that I hit him first to defend my girl. I don't know if he is suffering from a mental problem. He is like this since we got married.
please help me. Thank you.
Sylvia