My mother passed out late December and was not able to get out of the floor due to vertigo type symptoms.  She spent several days in the hospital and after all tests came back normal was diagnosed with labryinthitis.  She has since realized that this was probably an incorrect diagnoisi.   She is currently seeing a neurologist, but hasnt gotten all the results back.  She remains dizzy all the time.  It seems to be worse under any level of stress.
HiT hank for choosing Chat Doctor, Laryngitis is prime cause of dizziness of course there are differential diagnosis, like cerebrovascular pathology, idiopathic hypotension, cardiovascular lesion, Menaces disease, these all should be ruled out and required certain investigation, Take care, have good day.