When i get coughing nonstop i get lite headed and i lose my vision for a few minutes to where i can see straight or make out where i am. i'm a otr dvr?

Cough treatment....: Possible etiologies for the cough include bronchospasm from any etiology, gerd, post-nasal drip or even a combination of factors. All of these have entirely different treatments so you need to see a doctor asap for diagnosis/treatment. I really don't think you should be driving until this cough is under control, given the symptoms you describe so see a doctor asap!