Is this a panic attack?

I was driving home and took a back way and ended up at a 4 way intersection right next to my ex. I haven't seen him in 11 days. The thought of seeing him gives me anxiety bc I feel like I don't even remember who he is. My heart dropped when I saw his car. That's the closet we've been since the break up. Anxiety rushed throughout my body, my hands started shaking, and I felt so tense. I could barely breathe. I was calm but overwhelmed. It's about 30 after the fact and I still feel the same and now all I want to do is cry. My hands are still shaking. I just feel so empty. Is this a panic attack or an anxiety attack?