There are many different presentations and types of anxiety, and it is not possible to diagnosis an anxiety disorder via the internet. I will provide some of the general criteria related to diagnosing an anxiety disorder, however, I recommend you consult with your family doctor if you suspect any troublesome mental health concerns. Your doctor will be able to better incorporate your past medical history with your current medical status to determine an appropriate diagnosis.
Anxiety is a natural human response, but in some instances prolonged or severe anxiety can make daily activities difficult. Some common elements used for diagnosing generalized anxiety disorder are;
excessive anxiety about a number of events or activities, occurring more days than not, for at least 6 months;
finding it difficult to control the worry;
anxiety and worry are associated with at least three of the following six symptoms (with at least some symptoms present for more days than not, for the past six months): restlessness or feeling on edge, being easily fatigued (tired), difficulty concentrating, irritability, muscle tension, sleep disturbance.
These are only some of the diagnostic criteria used for diagnosing anxiety. I would not recommend you use the symptoms above to self-diagnose yourself, but rather to discuss your current symptoms with your doctor for a full work-up and examination if you feel it is necessary.