Hello and hope you are doing well.
If with movement you are getting pain it is likely to be an inflammation of the skin, subcutaneous tissue or the bone. This can happen with injury, repetitive activity or an infection of the skin. Sometimes it can be costo-chondritis, inflammation of the sterna rib junction. The symptoms of tiredness, nausea and dizziness can also occur with anemia, diabetes and hypothyroidism. A simple blood test can rule out these disorders. Only a consultation with your primary care physician can help diagnose.
Hope this helped and do keep us posted.
As I am an ENT physician, I can only address the dizziness. Dizziness can have different sensations. If your dizziness feels like you are spinning or the room is spinning (and especially if associated with nausea or vomiting), this might be due to an inner ear problem. I would recommend that you contact your primary care physician as you have multiple system complaints. He or she might refer you to an ENT for further evaluation and treatment. I would strongly caution you not to drive or operative heavy machinery while dizzy as you might injure yourself or others.