Im 47 years old, 160pds, 1,66 m height and i have this sharp pain on my left side right under my rib cage that makes me feel weak and gives me headaches and it reflects on my left leg and shoulder and its getting worse to a point that it wakes me up over night
This is hard to say since various conditions may cause similar symptoms such as spleen disorders or thoracic spine disorders. You need more detailed work up to rule out possible diagnoses.