Hi Dez,

Not all anxiety attacks are debilitating, which is what it sounds like you're having. Generalized Anxiety Disorder is like Dysthymia in the way that it's chronic and not always a full-blown, serious attack.

"The Diagnostic and Statistical Manual of Mental Disorders (DSM), published by the American Psychiatric Association, characterizes Dysthymic Disorder as a chronic depression, but with less severity than a major depression.

The essential symptom involves the individual feeling depressed almost daily for at least two years, but without the criteria necessary for a major depression.

Low energy, disturbances in sleep or in appetite, and low self-esteem typically contribute to the clinical picture as well."

http://en.wikipedia.org/wiki/Dysthymia

"Anxiety is a complex combination of negative emotions that includes fear, apprehension and worry, and is often accompanied by physical sensations such as palpitations, nausea, chest pain and/or shortness of breath."

http://en.wikipedia.org/wiki/Anxiety