How does a breakup make you feel?

I’m going through a terrible breakup. My ex and I broke up last June after being in each others lives for 14yrs. I was devastated (and still am). I’m in therapy, which has been helping, somewhat.

Before he broke up with me I had a very bad seizure (I have epilepsy), that caused me to suffer from anxiety and OCD. The OCD caused me to have terrible intrusive thoughts, that has me feeling like I’m going crazy.

I’ve been in the process of trying to get over everything, I was doing really good for a moment & then out of no where a rush of emotions came upon me last week. I’ve been crying, feeling terrible & like I don’t even want to be here. I’ve been experiencing headaches, stress & worst of all my intrusive thoughts have gotten worse (I experience religious intrusive thoughts, which are the worse). I’m missing my ex, but we don’t speak. All I want is for him to truly apologize for how he broke up with me. I need closure, but I’m trying not to think about that.

Although I’m older (I’m 32), this is my first real breakup, so idk what feelings are considered normal during a breakup, and I’m scared because I just feel like everything I’m experiencing seems so dramatic. I would like to know, can you be on the process of getting over someone & those hurt feelings come back out of nowhere? & what I’m going through, does it seem normal for a breakup? Thanks for the help!