What Causes Severe Dizziness While On Zolpidem?

for the last several weeks i have been really dizzy, especially in the mornings, and it never really goes away. I am taking Zolpidem to sleep, (recently switched from ambien) and am taking globosomething for tingling feet. I tried stopping one, then the other, for about ten days, with no effect, except without the sleep-aid i can t sleep. my health provideer, Kaiser, says i have a non-specific allergy to something and am also getting ringing in the ears, and runny nose. it used to be running down my throat, but after a mild moto accident last year, that stopped, but still getting a runny nose. Kaiser doesn t know what it is, but the dizzyness is alarming.