I've seen anecdotal links between neck muscle tension, TMJ (caused by wisdom teeth), tinnitus and eye floaters.
My tinnitus (I'm a long time sufferer) has also become less severe over the same period.
Until now I had not connected the two - mainly because I've made some other lifestyle changes such as improving my diet and avoiding stressful situations.
So it could be coincidental, but an interesting idea nonetheless.
High blood pressure can cause tinitus, although it's one of the less common causes: http://www.nhs.uk/Conditions/Tinnitus/Pages/Causes.aspx
Thanks for the link though, I may just have a try at getting an appointment again before the year is out.