When laying down

So no matter how much I try to relax when trying to sing I always end up feelings a little fuzzy feeling in my throat which I know I shouldn't 

but when I lay on my stomach and sing I don't get it. It's probably nothing but could laying in my stomach be helping something idk about or it's just a coincidence?

Interesting! Can you describe what you mean by fuzzy?

My first thought is that when you're lying down, you're totally relaxed. If you can relax almost as much as that when you're standing, perhaps that's the solution! I've had students in the past who were only able to relax while seated (almost lounging), and they gradually transferred that relaxed singing into their standing posture. 

It's almost like a slight itching problem I know it has to be with me relaxing because my jaw would get some slight soreness as well. 

When it comes to tension and relaxation, my approach is to first pinpoint what is tensing. Then, either

(1) move those muscles to prevent them from tensing in the first place (i.e.: softening and mobilizing your jaw so it cannot clench, or slowly shaking your head “no” to prevent the neck muscles from “grabbing”) 

OR 

(2) remove those muscles from the equation (ie: preventing tongue tension by singing with the tongue totally relaxed, out of your mouth and resting on your bottom lip). 

The ultimate goal with all of the above is to let the correct muscles do their job without the "help" of those extrinsic muscles that are tensing.