Loss of motivation?

I usually work out 5-6 days a week in the morning. Mostly strength training. I took a week off because I went on vacation. Every since I've been back, I have had no motivation to get back in the gym. I have taken breaks like this before, and my body always tells me when its ready to start training again cause i'll eventually miss it. Is my body telling me I need a break and should I rest until I feel like getting back into it, or am I just being lazy about it?
Loss of motivation?
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