Feeling Of Hungry

From yesterday still now,i already more than 18 hrs din eat anything..Am i hungry?Why i din eat? I also dont know....I may know that i m hungry but this hungry feeling not enough for me to take action go for food and rise my apetite..Or there is something wrong with my hormone receptor and hypothalamus??Therefore,my brain fail to send the signal to tell me the hunger...haha....From this,i found i got the potential to join the charity programme which need to be stay hungry for 30 hrs...haha....