"Suffering" as taught by The Buddha referred to people. Everything can't be suffering if suffering is a human state of mind. People suffer when their minds are not free. When thoughts are not free to come and go, and there is clinging, then there is suffering. When thinking of the past or of the future, and not living in the present moment, there is suffering. If you suddenly lost your memory, and was only able to focus on the here and now, would there be suffering?