Hi and welcome to the world of torrents.
May i ask you which software are you using to download torrents?
And btw it is seeding not feeding.
A computer that has a complete copy of a certain torrent. Once your client finishes downloading, it will remain open until you click the Finish button (or otherwise close it.) This is known as being a seed or seeding.
It is very normal.
In short you are uploading the file to others the same way others are sharing it for you to download.
There are some trackers which need you to upload and maintain a particular ratio.
But that is mostly with private trackers.(ones that need registration and not the freely open ones)
I hope you have got your answer.
Please do feel free to ask if you are still confused.