SHOULD I STAY OR SHOULD I LEAVE?

These days I am into deep thinking.  I am thinking of the following:

• Should I leave my calling as a pastor?  Yap, you read me right.  I am thinking of leaving the ministry.  This is not the only time I think of it.  Many times I did.  I do actually.  But this time, it is like what I said, a deep thought.  I know that God called me to the ministry.  I am just wondering somehow that God can call me to another ministry.  
• Should I stay in the ministry but leave the church where I am appointed right now?