Emotionally overwhelmed

I have been going through a breakup. My ex and I are still in contact but for perfunctory reasons (update on health issues, etc). We haven’t spoken about our issues except initially.

He said we would talk in person soon. That was about a month ago and nothing has happened since then. He has spoken to our mutual friends about it. I haven’t pushed the issue. I have been upset about it.

This morning, I woke up emotionally overwhelmed and anxious. All things that don’t happen often but I don’t know how to deal with it. I feel physically sick (nauseated, headache). I don’t want to reach out to him in this state but I don’t know what to do. Please help.