Here you go Bryanna:

http://www.haea.org/professionals/angioedema/

While angioedema is not common, it still happens and is confusing and difficult to identify. Patients may be labeled hypochondriac because attacks seem random.
The estrogen triggering type is sometimes called HAE III.

However dental work, IS one of the triggers for attacks!

Also in older patients on blood pressure drugs that are in the ACE family, attacks can happen due to the buildup of bradykinin, that these drugs cause. This is not so rare either.
These attacks are very similar to HAE and can cause medical emergencies.

However some of the symptoms of HAE overlap with lupus.
And lupus is much more common. When first beginning symptoms can be all over the body and hard to pin down. This poster, a young female, is in the age range for first appearance.

The HAE website is very very complete and interesting. So do look around. There are new drugs to treat and prevent HAE attacks now. And I bet they are mucho expensive!