Mentally and physically exhausted

My mind and body can't function well.. Coz I'm way too exhausted from working.. I'm will working ot over cony.. Sigh... I'm so tired.. On my way to work now.. 2pm shift today.. For the past 2 days, I worked morning shift and during these 2 days, people has been asking me to work double.. But I don't want and I ask them why.. They say they like working with me.. Fun working with me around.. Sorry guys.. I guess I'm too nice to them.. I don't find people to be with me but they are the ones that want to be and work with me.. Blog till here as my mind is tired to think..