i really dnt know y bangunguton ang tao.. last nite as i was sleeping beside my husband i heard him moaning in pain then wen i turned to him he was pressing his chest and his face was really in pain and he was just closing his eyes then i was shaking him but he still didn't wake up i got him to a sitting position and believe me he was so light.. after about 10 seconds of shaking he finally woke up but still in pain.. then wen he woke up he said na feeling daw niya naa ni hold nya na dli jud cya ka move.. dba we call this urom? wats the cause of this? or do u hav any scientific xplanation?