So my ex just sent me a message on christmas it was a really pathetic shot at my attention just after I forgot her. Nice. Anyhow when I read that shit i just started shivering, shaking and my heartbeat increased significantly. I want to make clear that I want nothing to do with her anymore got no feelings and she’s not even on my mind (before this message). The only thing is that this reaction of mine is worrying me, does someone maybe know what this means or had something similar?

Edit: I blocked her on everything, she made a new account for this message.

Sorry for the not always correct English