Totally exhaused

It's sunday, I sleep till 2pm, but don't really want to wake up. I slept for 14 hours already! It just likes having a 4 days wild camp in past days... How can I be so tired? Both physically and mentally... Although I walked for a whole afternoon last day, I'm not really tired physically. But I feel dizzy... Feeling that I never have before.

Although I have little supervision in my work, it's still stressful, because I have to worry about the feedback of schools. Successful or failure is totally depend on me...Working on environmental education is not a problem, nobody can grantee the sucess, but I'm responsible on it... I think I'm more suitable to work at NGOs rather than profit making company...