One side of body. Sleep. cant sleep.

I feel my left is somewhat wierd compared to right, When i rotate my neck left, it feel like a perfect turn but when i do left, I barely feel muscle when turning. Feel like swallowing only left side. Feel like left rib muscles are thinner than right ribs. Sometimes pain under left rib where I feel that I lost some muscle. My left cheek to feels wierd while smiling , not visually but I can feel it inside. Doctor said , left leg is smaller compared to right. Whenever I get headache, I get behind my left head neck region which goes to left scalp. MRI of braine,spine, ENMG , blood tests excepts d and b12 are normal. I don't know what's happening. I am losing confidence and getting bad thoughts about future.cant sleep.this has been going for an year now.