Temper tantrums are normal for toddlers who cannot deal with frustrations of everyday life in any other way.  However, when the tantrums are severe and disciplining a child becomes a challenge, you should talk with your daughter, it might be the time to have a conversation with the child's regular health care provider.

Suggested readings:

Where do temper tantrums come from?
http://pluggedinparents.com/component/content/article/250

Practicing healthy discipline
http://pluggedinparents.com/index.php?option=com_content&task=view&id=172&Itemid=58&ed=12

Best regards.

So sorry to hear that you are having these problems. Sure it makes it difficult to enjoy your child, who I am know is delightful in many ways. But, the good news is that many children this age have similar problems.  In some cases it is almost a normal developmental stage.  At this point it's your job to make sure that you are doing everything you can to think about whether you are putting her in situations she can't handle.  Two year olds often have low frustration tolerance so parents need to limit their exposure to situations that are frustrating.  It's possible that your daughter has even less frustration tolerance than other kids her age.  That is very very tough for a parent!  But you need to revise your expectations for her, think about her as even a younger child and think about what you would expect of maybe a 1 year old in whatever situation you are in.  At this age it's all about parent's expectations matching children's capabilities. Try what I suggested and see what happens for a couple weeks.  Write back if it doesn't work.

Jeanne H. Brockmyer, Ph. D.  education.com expert clinical child psychologist