Oh hey this sounds just exactly like me these days! Except I blame my fragmented attention span on babies. V similar effect to Wellbutrin, apparently. I ascribe this partly to the fact that when you are being constantly, like, CONSTANTLY interrupted, your brain basically forgets how to focus on anything, and partly to the much studied deleterious effects on the brain of sleep deprivation. Science says I can be forgiven. Still sucks though.

The only way to survive is to write absolutely bloody everything down, preferably in physical form, eg a diary or notebook that you keep somewhere prominent and check CONSTANTLY. And you'll still forget. But the constant reminders help. (I supplement this with a kitchen chalkboard, where I write the week's most important engagements etc. Then I see them every single time I walk in or out of the kitchen. Which is quite a lot. It helps.)