SleeplessSoul: I've had 3 caloric tests in my lifetime. The prior two (20 yrs ago) were warm/cold water like yours: documented abnormal, bilateral results with 8th nerve deficiency. They were not sure why back then and had not been evaluated since. I did not have tinnitus til 4 yrs ago.
I, now reside in a different State and after a head-injury 4 yrs ago, the audiologist (University hosp) had a student run the -Air- caloric test and were in a hurry to complete because of my intolerance. Thinking back, one would think this to be invalid, to retest again/double-check or do further workups, but they never did. They also did NOT document my severe reaction and said the results were normal. Knowing now (after the fact) - it seems questionable, if all prior ones were abnormal with additional symptoms (not known at the time). They just never bothered reviewing my prior medical history. Calorics reaction was so severe - wheelchair, carried and bedridden with a migraine for 2 days. This too was not documented. I do not know if this is a typical reaction for many people or a "red-flag" requiring further tests.
I never had my ears/arteries checked with a stethoscope, even though I wrote in their forms that I "heard my heartbeat loudly along with an increasing *wind whooshing* tinnitus", like wind going through a window crack. Not even a MRI of my inner-ear bones in my lifetime! I am just so angry at myself for not being more assertive, but I didn't know. I trusted the Otoneuro. after TWO brief appts. who said I had NO other option, but a CI for tinnitus/migraines. (My hearing had been stable for over 30 yrs). Daily, I cry, wishing to go back in time to hearing & even put up with the softer fluctuating tinnitus, compared to what I'm enduring now.