ok. about a month ago i was pushing really hard in the gym. 80kg clean and jerk continuously. maximum rest was 30 seconds. did this for an hour.
passed out on the last rep.
2 days later
100kg clean and jerk. passed out pressing the weight overhead. dropped it on my thigh and it missed my knee cap.
*and by passing out i mean i pressed the weight up then lost my hearing and couldnt stand straight and collapsed on the ground having a mini fit.
it is still swollen after 5 weeks.
back to the gym last week.
lifted 100kg clean and jerk numerous times quite easily.
i noticed it is all to do with your lung capacity and how much air you breath in before you actually push yourself. yes it could be due to lack of nutrition or carbs before your workout, but i dont think it was in my case.
you just have to settle yourself in whatever your doing, relax, take a deep breath and push.
in my case, i was not breathing a great deal at the top of the clean.
and also i was coming back from gastro and trying to do to much too soon.. hence why your nutrition should be 100% spot on.