I just started taking Gabapentin for severe pain in my upper leg after I had back surgery had a rupture disc that was broken in pieces , when I stand the pain is terrible ,had a nerve study yesterday and my Doctor is to call ne in the morning for results; the dose is two a day and I took two this afternoonand after a hour or more I was sitting in chair and all at once I got so dizzy and felt like I was spinning up in the room and everything got just black and so dizzy and got so hot and my arms for a few minutes felt as pins sticking in me ; do you think it was the medicine I haven t been taking everyday because it makes me sleepy so I thought I will start since having terrible pain?