how long is a funk supposed to last?

I feel trapped in my own head. And, my body doesn't feel good because of it.
The tea is good, and instead of a five hour energy in the afternoon, an iced coffee works fine. Soon, I hope to wean completely off of caffeine. The thing is, I'm listless. I have the motivation to do absolutely nothing. I don't feel creative or inspired. I wash the clothes, hang them on the line, take them off the line, fluff them, fold them, distribute them. Fill the dishwasher, empty the dishwasher. Give this one a ride here, pick that one up there. It's all so boring. I'm supposed to feel grateful, but I don't. I feel anxious and annoyed.
I don't like this funk. I need to make some changes to rush it along. First the caffeine...