I think when I'm depressed, not much matters, when I feel this way. I have this "couldn't care less" kind of attitude. And anything I think of doing, even if it's routine mundane stuff I'm like nah.
So I can get where you're coming from when you use the analogy of medication.
I think you're stuck in a "Why bother" frame of mind today, because it seems almost impossible that this will ever lift.
And if you do manage to get out of bed? What good will that do? What is there that's good in your life (apart from your kid that I know you love dearly)
And yes, I think that your mother really does mean well by trying to get you to eat healthily. She is obviously concerned about you. Because she loves you.
Honestly? I see absolutely no difference weight wise in this current picture of yours compared to the last one. I remember commenting some time last week that I LOVE this profile picture = you look great
In terms of not giving in to depression.
No matter that you don't want to / feel like it / be bothered / see the point today -
Please bear in mind things certainly can, and do change.