Can anyone help me with what happened to me today. I got out of my car and my feet felt really heavy as if I had stood in loads of mud (I even checked my feet). I came in and went upstairs and then sat down and everything went black, then I was ok, the black again really quickly about 3 times and my head dropped to my chest. I have been fine since and no idea what it could be? Maybe need a GP but reluctant as I feel ok now. anyone any ideas?