Before I was diagnosed, I had noticed quite a bit of tinnitus. I remember coming home from work, lying on the couch and just listening to the ringing in my ears. I started noticing it again recently, although not to the same extent as before. What does it mean?

I’ve googled it, and a lot of websites list diabetes as a cause of tinnitus, but do not explain how the relationship between blood sugars and the sound works. Do I hear the ringing when I am high, or rising? This is what I suspect.

Tinnitus and diabetes

Holcát M.
Klinika ORL I. lékarské fakulty UK a FN v Motole, Praha. holcat@fnmotol.cz

Tinnitus is the perception of sound in the absence of corresponding external sound(s). Tinnitus can be perceived in one or both ears or in the head. It is usually described as an unpleasant noise, but in some patients it takes the form of a ringing, buzzing, hissing, humming, or whistling sound, or as ticking, clicking, roaring, tunes, songs, or beeping. It is estimated that 1 out of every 5 people experience some degree of tinnitus. Tinnitus is not itself a disease but an unwelcome symptom. It can be accompanied by audiometric evidence of deafness which occurs in association with both conductive and sensorineural hearing loss resulting from a range of underlying causes, including ear infections, foreign objects orwax in the ear, and injury from loud noises. Tinnitus is also a side-effect of some metabolic disorders, medications, and may also result from an abnormally low level of serotonin or high level of insulin. As mentioned above, some foods are found by some people to make their tinnitus worse. The inner ear, like the brain, is totally lacking in energy reserves. Its metabolism depends directly on the supply of oxygen and glucose from the blood supply. Alterations in glucose metabolism therefore have great potential for disturbing the workings of the inner ear. Because tinnitus is often defined as a subjective phenomenon, it is difficult to measure using objective tests. Although there is no specific cure for tinnitus, those affected can learn techniques to successfully manage their tinnitus to the point where it is no longer a problem for them.

PMID: 17642439 [PubMed - indexed for MEDLINE]

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Auditory evaluation in patients with type 1 diabetes.

Pessin AB, Martins RH, Pimenta Wde P, Simões AC, Marsiglia A, Amaral AV.
Departments of Otorhinolaryngology, Ophthalmology and Head and Neck Surgery, School of Medicine, São Paulo State University, Botucatu, Brazil.
OBJECTIVES: We performed a prospective clinical study of the cochleovestibular symptoms and the risk cofactors and characteristics of hearing loss in patients with type 1 diabetes. METHODS: Group 1 consisted of 40 patients with type 1 diabetes, and group 2 consisted of 20 control subjects without diabetes. All participants answered a questionnaire, and their medical records were reviewed. They also were submitted to otorhinolaryngological examinations and to auditory tests (pure tone audiometry and acoustic immitance and auditory brain stem response [ABR] tests). RESULTS: Dyslipidemia, hypertension, retinopathy, and diabetic neuropathy were not frequent in the patients of group 1, but incipient nephropathy was present in 47.5% of them. The most frequent cochleovestibular symptoms were tinnitus and hearing loss. Sensorineural hearing loss was found in 4 patients of group 1 and was predominantly bilateral, symmetric, and affecting the high frequencies, coexisting with normal vocal discrimination. These patients had a longer time from diabetes diagnosis and had poor glycemia control. A delay of ABR interpeak latency I-III was observed in 11.25% of the group 1 ears. All patients of group 2 presented normal audiograms and ABR tests.
CONCLUSIONS: In group 1, the most frequent cochleovestibular symptoms were tinnitus and hearing loss. The sensorineural hearing loss was mild, symmetric, and predominantly high-frequency. A delay of ABR interpeak latencies was detected in the patients of group 1 who had normal audiometric thresholds.
PMID: 18564534 [PubMed - indexed for MEDLINE]

Thanks for the info, Sohair. You always seem to be able to help me!

Ignore tinnitus,I learnt one thing Megan,if there is a minor problem,I ignore it.I suffer from bad migraine,when it starts,it is tinnitus,vertigo and feeling sick for days.I learnt by concentrating on positive thoughts,I always feel better.