He broke my heart, please help. Is this normal for me to

He broke up with me yesterday and I took it hard. To see him actually walk away from me, just like that. That’s when it hit me when he literally walked away. I cried all the way home, i couldn’t even see the road, I’m surprised I made it, I couldn’t sleep, I was so dizzy and my body hurt so bad, it felt like I was being crushed, my body was so tense there was nothing that did not hurt, I never felt like that before. I’ve had breakups with people I’ve been with way longer than him. I was gonna go to the hospital that’s how bad I felt, i felt sick like I was going to throw up, actually I did. I wanted to take sleeping pills but I had a few shots and didn’t want to mix alcohol. I had random moments of just crying today, instead of just holding it in. But I decided to hang out with my friends because I could have stayed home and cried like I wanted to. But the more I talked about it, seemed like the easier it got. A lot of people showed me it wasn’t my fault. I believe he did what I was afraid to do to him, hurt and leave him. Because I’m not the type to just give up. I usually miss him anytime I’m not with him.. but the unusual thing I just noticed is even though I loved him, I don’t miss him. I don’t understand how thats possible.