I think this Insomnia is killing me?!

The past week has been killing me. At first it started out lightly just waking up a little more often than normal, but its gotten to the point where I feel my mind deteriorating. I can't sleep. I spend most my nights pacing and sweating. Excruciating pain in my legs and back. Constant feeling of on the verge of having a panic attack, but it never comes. Nothing ever comes but the sunrise, when I watch it I feel nothing. Like a zombie. No rebounds or crashes during the day, just the anxiety of my nights lingering, haunting me. I've tried the tranquilizers, benzos, even opioids. Nothing works