Yep, absolutely. I tried everything, had an MRI done, and the only thing that reduced symptoms was starting regular high intensity workouts (Olympic lifts and such). A year later and I'm nearly symptom free.
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.