When I feel like that (often), or should I say when it becomes unbearable (as I feel it, most of the time), it feels like I am 'grossly-allergic' to myself, a sort of self-rejection/ self-hatred beyond words and hard to stop, or not act on.
The people here are right, and they care about you (me too), and you contribute more than you know. This is a very bad time for you to get through, but the accurate facts are not only what your mind is telling you now.
I am glad the other is helping- you are neither 'bumbling' nor 'moronic'. I would venture a guess that you are so wound up, the addition of (those) meds likely brings you to an average level (of most people).
I agree a lot with heidi's 1st post (with the link), of how it feels.
Hugs if you will accept them, strength and peace offered irregardless.