I do that too. Bit then I can switch just as rapidly and become "super efficient" at clearing things out. Becoming very minimalist in style. I take the whole thing that if it isn't something beautiful or loved then I don't need it.
I later realise that some things neither beautiful or loved ARE needed. (tools and kitchen equipment mainly)
This then becomes my excuse to have to buy NEW THINGS which I also DONT REALLY NEED and the whole crazy cycle starts again.
Wow. I so get that fuzzy feeling. I kinda like when I get that. Just enjoy it for now. I try not to think too much about what's to come later. We all know its coming but wouldn't it be silly to waste the good bit by worrying about it?