I had an MRI (for possible brain cancer), blood tests, specific tests for a variety of possible causes of my vertigo and tinnitus. Then it would go away for a while and I'd stop. Then it would come back and I'd make another appointment only to have it go away again.
As mentioned before,, I just gave up. I can't spend my life going to appointments and taking tests to diagnose a problem that sporadically annoys me. I put it in the same category as getting old. Don't like that either but there nothing I can do about it except for taking care of myself and hoping for a long life. Aches, pains, deteriorating eyes, loss of muscle tone, fatigue, peeing frequently at night, arthritis, thin skin causing cuts on my hands, stiffness after non activity for an hour along with looking like my father when I look in the mirror is part of the deal.
Always liked Art Linkletters line. "Growing old isn't for sissys".
On the other hand, if I was in my 50's it would be a different story. At 66 I think that's the way my body is going through the cycle of life. Hell, I've got friends that were younger than me and are gone. My parents had a some of the same problems. Both were gone before 80. You just have to play with the ills and pain.
As a note on the vertigo and tinnitus. I was told by one of the physicians that when you get older you can move quickly and dislodge buildup somewhere in your inner ear or eye causing vertigo until it latches back on to something. It happened to me one of the first times I got it. I just stood quickly, turned and almost fell down with dizziness. It lasted almost a week.