Copaxone post injection reaction

Evening everyone. . I’ve been on copaxone since September 2024 with no problems. Yesterday I did my first injection of the week and within seconds I became very flushed and hot, had a strange sensation in my throat and bad shooting pain in my lower back. This all passed within around 20 minutes or so. I’ve spoken with my ms team today and they’re happy that it was an immediate post injection reaction and to carry on as normal with tomorrows dose. I had a very similar reaction when I was having chemotherapy a couple of years ago and the oncologist changed my treatment. I’m very anxious about tomorrow’s jab, especially when I experienced similar with chemo but the oncology team didn’t take any chances and changed my treatment. Has anyone had this post injection reaction to copaxone and what were you advised to do?