today i woke up feeling dizzy, my vision started to blurr when was standing in bathroom and felt really sick and just collapsed to the floor but i was still conscious just sitting there, and after a while my left ear was very numb and i couldnt hear anything and couldnt stand up since my vision was still blurred and my legs and arms were weak. why was this? i am 14, i weigh 7 stone, i am asthmatic and this has happened a couple of times .