Loved one with anxiety

Hi!

I am looking for any kind of advice here so please feel free to comment your thoughts!

My boyfriend of a year lately has been incredibly anxious on morning when he works (he recently started a new job). Every morning he will wake up around 6AM despite not having to work until 10AM and he will toss and turn until eventually he begins throwing up. This morning he was sobbing and I felt horrible :( I have no idea how to comfort him. I recommended seeking medical advice however he refuses as he doesn’t want to be medicated. I’m not sure how I can help him or at least make him feel supported. Please let me know what y’all think, thanks!