Vertigo?

If I had to guess, I'd say you were dealing with an inner ear problem. Anxiety can cause dizziness and nausea, but it would be acute, not chronic like this. Antipsychotics could cause these as side effects but not with this kind of severity and not out of the blue like that. Other possible causes are, as have been mentioned, ear infections or a bad case of influenza; however, it should be very acute in these cases.

Vertigo is not just a type of motion sickness or nausea, it is a sensory hallucination where the world seems to be "spinning", accompanied by severe dizziness and upset stomach. Vertigo is caused by dysfunction of the vestibular system of the inner ear.

The inner ear consists of a conch-like section responsible for hearing, and three round canals that are responsible for the sensation of balance. These canals can become inflamed by certain infections (labyrinthitis). They can also become impaired due to free-floating biological deposits within the canal (Benign Paroxysmal Positional Vertigo), tumors, or Meneire's disease.

Vertigo is a very serious problem. Please see a doctor as soon as possible. If need be, have someone drive you to the emergency room. You can deal with the symptoms short-term by taking an antihistamine such as Benadryl (diphenhydramine), Dramamine (dimenhydrinate), or meclizine. Do not drive until the problem is taken care of. You may be referred to an Ear-Nose-Throat doctor (otorhinolaryngologist) or an audiologist for more specific treatment.

http://www.drdaveanddee.com/dizziness.html

i have the same thing it is called bppv, , it is a benigne vertigo , what happens is that you get tiny particles like grains of sand that float out of your inner ear and get stuck in the tiny fibers of your ear canalls, go to an ear nose and throat specilest, he can do the surmont, or eplies manovers for you and it will cure it, it does unfortunatly come back. iwas vertigo free for over a year and out of the blue one night i rolled over in bed and HELLO the room went woosh!! i went to an EMT and he did the manovers and it have been gone for 4 months now. yes vertigo is nasty but bppv wil not hurt you, as the doc told me you can get gall stones and kidney stones, you can also get ear stones. just get them manovered back into your ear and they will disolve and go away. good luck let me know how it goes. this is what i think brought on my anxity and depression.