Moving or any other major change can be both exciting and stressful. My stress alert signals can go off when things are rosy or grim- when that happens I've learned to be gentle with myself much like I would respond to a friend in the same situation.
Is my guilt at not getting things done masking another emotion? Yeah it probably is. I'm probably masking sadness and resignation.
Most of the time my emotions are telling me something about myself that I need to pay attention to but sometimes they are just fleeting thoughts and soon pass. Something that helps me when I'm overwhelmed or procrastinating is to take just a few small sure steps toward the task; instead of placing demands on myself that I'm just not ready for.
It sounds like you have a good idea of how/why and what is going on with yourself and that awareness is a gift not everyone has or takes advantage of. Take care.