Can a pinched nerve cause a blackout? Last Sunday I nearly blacked out, but dropped to my knees quickly and put my head down. I then layed on the couch for a couple hours feeling weird. And I have felt weird on and off for the past week. My regular 6 month check up happened to be on Wednesday. So I told him what happened. He checked for inner ear infection, blood pressure, and listened to my heart. I also checked for glucose level. All came out normal. He suggested it may be dehydration. But before I take another blood test I thought I would just drink a lot of fluids and see if I feel better. Well, I initially have been feeling better but still get a weird feeling every now and then like I am going to faint. Then today I happened to be pressing in the middle of my chest and it hurt. Not only did it hurt, but after pressing a few times, I nearly fainted and my feet got tingly. I use a lift in my shoes, and arches because of alignment issues all the time. I have been to physical therapy in the past and chiropractors due to nerve pain and muscle pain. Recently I have started doing some morning strengthening exercises in the mornings and walking at night to add some exercise to my days. So I was wondering if perhaps my almost blackout and weird feeling this week could be due to a pinched nerve? I just hope it s not a more serious heart problem. I am a 40 year old female and mother of a 4 year old. I am 5 1 and 168 lbs. Thank you for your help. Karen