I’m fearful I might have undetected syphilis.  7 years ago I experienced a severe fever the day after a one night stand.  A couple of fluid filled blisters came up around my groin at the same time.  I got these tested but the result was clear.  Over the years I have experienced testicular pain and night sweats.  I’ve gone back for testing on 6 different occasions but every time the results have come back negative.  I haven’t had sex for a number of years now but the symptoms persist.  The night sweats are worse and more frequent, sometimes waking me up several times every night.  I now also have continuous – and almost unbearable - tinnitus which I fear might be Otosyphilis (Ocular Syphilis).  I’ve raised this with the nurse at my local clinic and she seemed never to have heard of it.  She’s said it is impossible to have repeated false negatives.   My question is twofold (1) Could I be experiencing Otosyphilis? (2) Is there an alternative test and more reliable test for the disease?