For some people, to be productive means to go beyond the expectations of their bosses. For some, it is to sell more. For others, to get the highest marks at an exam. Others will feel productive when after they run for two hours, their bodies start to respond positively.
Some people will find themselves productive when they are able to perform the delicate art of being good parents. Others, when they are able to celebrate their 50th. anniversary married to the same person.
Productivity is however not only based on personal sensations. Whatever others feel and express about us is also part of that and it does happen sometimes I feel I was very productive and someone else finds me a lazy person...
This is why the key point here is the criteria and to make sure others have the same points to check on you. If your criteria are not clear, then it is possible that you produce, and give very good results, but you won't be productive. Or if your criteria don't match others', then stress is one of the main outcomes here as there will be pressure on you.
To be productive as a person means that your personal resources are used in the best way possible. The less waste, more productive you are. And in terms of a person, it is good to check everyday on the self and see how to improve your own productivity because the result of that is a very deep satisfaction that you are fulfilling your role in the world stage.