“My 14-year-old daughter exhibits extremely moody behavior. Is this normal?”

While her age makes her more prone to such behavior, you could consider counseling to 1) foster communication and understanding of what each of you needs from the other and 2) determine if she needs help coping with various stressors in her life.

Make sure you rule out any medical condition first - have her see a medical doctor first. Based on those results, counseling may be in order.

The moodiness and anger could be a result her going through puberty and hormonal changes. This has a big impact on some for lowering ability to control mood/anger. Therapy could be beneficial. If comfortable, she could consult with her school's psychologist or talk to her family doctor.

Dear Concerned Parent,
 
You have not mentioned when did this moodiness and being angry at the smallest issue start. Is she menstruating? Is she using drugs? Is there something else going on in her relationships with her friends and classmates or at home with family members? So, it may be a good idea for her to be seen by a psychologist for counseling and by her primary care pediatrician to rule out premenstrual condition and other factors that may be affecting her emotions and lack of control over expressing them appropriately.
 
Take care,
 
Dr. Sonpal 

This a normal thing with many young teenagers which usually starts at age 14. The relationship between the daughter and the mother seems to crumble at times, but gets reunited around age 18-20. You say, that long? May not be that long. A daughter becomes closer to her father at that time. If she has no father around, then she needs you more than ever. Try to be patient and love your daughter and always let her know no matter what, you love her and realize she is growing up and becoming a woman and her hormones are changing and she needs support. Bless you.