Chest pains are a sign of pinched muscles in the back. When you have pinched muscles in the upper back the pains often follow the nerves to the front of the body and manifest themselves as rib, chest or heart pains. To get rid of those pains she has to free up the muscles in her back and here's how to do that:
(do from a sitting position)
Place your left hand on your left leg next to your body. Place your right hand over your left shoulder, fingers over the back and the palm in the front and firmly pull down on them and hold. After 30 seconds slowly lower your body forward and to the outside of your left leg, keeping your left arm fairly straight as you do. When you reach your lap remain there for another 10 seconds, release the pressure but rest there for another 30 seconds. Then reverse your hand positions and do your right side.
Her sore throat can be caused by tight muscles in her neck for when they are tight they also restrict everything inside her throat as well to give her that pain. To get rid of that problem she has to free up the muscles in her neck and here's how to do that:
Put your hands alongside your head so your thumbs are on the front of the muscle under your ear and your fingers are on the back of the muscle behind your neck. Squeeze your thumb and fingers together and hold. Relax your body. When your fingers and thumb touch, about two minutes, slowly lower your head as far as you can, release the pressure but hold your neck lowered for another 30 seconds. for both- for best results relax your body first by taking a deep breath and exhaling then remain this relaxed.