Struggling with Grief and Physical Health

I've been so stressed lately. I can't eat or drink without nausea meds, can't sleep until my body steals it from me, can't stop being cold (even when I'm wearing a T-shirt and shorts under a blanket with my heat blasting at 79), can't stop crying, my throat feels closed all the time, my fibro is flaring HARD, and there's a pang in my chest that keeps folding in and in on itself. my therapist calls it grief, and suggested Intensive Outpatient Psychotherapy. one partner travelled for work a while ago, and the other just left to also travel for work - the first can't come back for a while, and the second won't. but my physical health keeps going downhill despite my best efforts??? how do I hurt less??