A quantity that does not equal 0, a real nonzero number must be positive or negative and a complex nonzero can have real or imaginary parts
1. Normal
2. Excessive
3. Normal
4. Normal
5. Excessive
If it causes you to loose sleep and not do the things you used to or makes you feels sleep then it is excessive but if you feel fine after you do the task the anxiety is about it is completely normal.