Your variation interval is too short otherwise It ca be dagonesed as a BIPOLAR DISORDER- where samething happen but in the interval of few weeks to few months.
may be a option but for confirm diagnosis more detailed history and information is needed. What is it?
Let me explain.
This sort of anxiety
occurs due to imbalance in the Neurotransmitter
(Chemicals that act on nerve
and brain). Several social factor like unfortunate events, problem in relationship, history of past bad events, your surroundings as well as medical condition may contribute to this abnormality of chemicals.
just go to a General Physician and he will show you the right way to live a healthy life.
Best of luck.