Take a moment to ponder all that you are involved with in your life. Your organization, your family, your personal goals and commitments, health, finances, soccer games, etc.
Thinking about all that we have to do, and all we're committed to, can create a sense of overwhelm just in itself (although, our thoughts about what we have to do and how we "feel" about overwhelm are actually more stressful and overwhelming than the real tasks to be done - but that's a whole other article.)