That's normal, mind you. For me, it happens with every book, and I'd be surprised if it didn't happen to every author on tight deadlines.
Now, however, there's a tiny hiatus to enjoy before the revisions wing their way back... (Although, wouldn't you know -- I've already started thinking about my next book. And, of course, it's going to be so much better. Every book is always going to be better than the last when it's still just the kernel of an idea.)
Still... I went for a nice long walk this morning, and I have a long list (which I must write down) of Things To Do.
My mum's arriving next week, so there's baking to be done, and the Australian Romance Writer's conference is looming, so there's dress-up clothes to consider, and I have things to post to friends, bills to pay, and a website to update, and the hairdresser to visit...
Many times, I am sure that writing is a very pleasant way to hide from real life. :)