Stood up from the couch and stretched with my arms over my head. Walked out into the kitchen and got so dizzy that I had to sit down. Hands got numb and it felt like my stomach was spasming. Only last for maybe 5 - 7 seconds and then passed. I didn't lose control of my limbs or anything and I was fully cognizant of my surroundings. I actually laughed out loud when my stomach was spasming because it was so weird. Wife thinks I just had a seizure.