In reply to Climb1981: Give up? Heavens, no.
One of the most important things about climbing is not climbing. In case that sounds a bit zen, let me explain a little. Climbing in all its forms can be a dominant, near-obsessive experience. You train, you climb, you want to do a certain route, you train harder, you do the route, or fail to do it, and then move on to another target, and on and on and on. A journey, with significant milestones, but it can be a journey without a destination.
So from time to time, it's important to step off the track. If you've had a week or so climbing and feel too pumped physically or mentally or both to do it any more, then what you declare is a day of Not Climbing. This is what you are doing; Not Climbing. If anyone asks you what you're doing that day, that's your answer. Not Climbing. With capital letters. What you do that day is more or less irrelevant. Go mooch about the shops, go to the pub, read a book, whatever you like because what you are doing that day is Not Climbing.
The day after, you may find that motivation has returned and if it has, great; go climb something. If it hasn't, carry on Not Climbing until the drive returns. It may come back after a week, a month, a year. You haven't stopped being a climber in this time, it's just that what you are doing is Not Climbing.
I haven't stopped being a climber, though illness means it is now some years since last I did any climbing. It's just that I've been Not Climbing. I still think of myself as a climber and probably always will, even if my health prevents me ever from doing it again.
Try Not Climbing for a while. You won't have stopped or given up; you'll just be actively not doing something, defining who and what a part of you is by its absence. The drive may come back quickly, or it may take an extended sabbatical. Don't fret about it, it'll come back when it, and you, are ready.
T.