Movement of thought and fear

When you sit silently in a park, office, home..., if you observe your thoughts, they take you into future or they recollect about the past happenings. If we can call that as movement of thought, my question to you is

Is there fear in the absence of that movement?
Can fear exist without the movement of thought?
If not can we say that movement itself is fear?

Be careful I am not asking you to stop thinking, I am asking you weather it is true or not?