I suffer with dizzy spells that I have not had a diagnosis for yet, when I get these dizzy spells they appear from no where, then I get really bad nausea, it can last 5 mins to 4 hrs, when it goes away I get a slight headaches.
My GP says its maybe Anxiety, I maybe agree a bit with that because I did do get very scared wi these dizzy spells.
My GP is made an appointment with the ears,nose & throat clinic to see if I've got Vertigo but he's sure I haven't, because I don't have ringing in my ears nor are they sore.
I noticed one thing that I read up on, you can suffer from Visaul Vertigo, because there is something wrong with your inner ear, your eyes do a lot of work to make up for it, and I have noticed my eyes are harder to consentrate on things, like reading print, walking in and out stores etc..