21y male. Symptoms are as follows weakness,chest tightening,pressure on throat, back pain when sat down or bending,pain in joints even bend them, numbness in hands and fingers, pain at muscles, neck pain when turn head,head ache. Shock type feelings at the left back of head. Numbness in head.Shivering in hands and feeling falling when stand and even at rest also some times.X ray of chest, back and ecg are normal. This would be