How i know it works

I was diagnosed with M.D. in 2011 and medication really did nothing. Really I was destined for a disability pension. 

While with a friend in early 2012 I purchased a natural testosterone booster called testo jack.  About 2 weeks after I started taking supplements I realized I hadn't had a vertigo attack for over a week. After a month or so stopped taking supplements to see if vertigo attacks would return ... and they did come back few weeks aftet stopping.  There's more in next journal