Is this an issue with lack of motivation on what you need to do, like bathing, getting dressed, eating? If so you need to see a doctor. If it's motivation for stuff that you need to do like household chores then I would suggest you make a list of all the things you need to do but don't want to, delegate what you can and then try to figure out if there's anything you can add to the experience to make it more pleasurable, that way you will need very little motivation to do it.

Let me give you an example, I don't like cooking too much and I hate cleaning but when I'm in the kitchen I put on a good audio book to listen to and I really enjoy it.