Can you sleep while having anxiety

I haven't had anxiety attacks in a while tonight I don't know why I am but I'm laying in bed , my stomach hurts and I've had it for about and hour now I don't take pills or do anything to help it , I never went to sleep while having one . Is it okay to ? I know laying down makes it a little harder because it feels as if I'm swollowing my tongue even though I'm not but it's how anxiety gets . I'm beyond tired and trying to just calm and realx .