Is it normal i get panic attacks when i see a picture of my ex?

I came across a picture today by accident of my ex that my friend had posted. It was totally out of the blue. I immediately got lightheaded, queasy, and had to run to throw up. It’s been a year since I’ve seen him, but think I had some trauma from relationship. To anyone else, he’s just a normal guy, which sucks, but to me think I had a lot of trauma from relationship. I’m also sensitive. Is this normal?

I’m still sort of in shock & his face is in my head. I’m sort of queasy. I feel like I have vertigo