Hello Sare…
Im on the same boat as yor. Mine began almost month and a half… it started with small spinning vertigo that last 2 seconds each… during 4 days… after that, vertigo disapeared… and start this feeling of lightheaded and foggy brain. I saw a NeutoOthologhist but found nothing…went to the Neurologist… and my neurological test came normal…
They told me that is realted to the exreme ansiety that i have been suffering this days… that cause me CHRONIC SUBJETIVE DIZZINESS…please check that