Why is my face so uneven?

As you can see from the photo, both sides of my face are completely different. The left side is lifted, with clear cheekbones, and a sharp jawline but the other side is droopy, and chubby looking. I have noticed that I can also only lift my right eyebrow (left in pic) by itself, but not the other, and when I clench my jaw the right side feels stronger. Is there anything I can do? Will general exercise help, and eating with my left side more?

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