Numbness and pain in the hands can be caused by the neck.
Stomach , intestine ache,and even heart pain, can be caused by problems in the spine, the chest part of the spine.
Sensitivity of the legs, hip pain, thigh pain and lower back pain can also be caused by problems in the lumbar part of the spine.
Treat your spine first if you have pain listed above.
Often we make mistake and focus on treating the organs and body parts that hurt, instead of treating the spine.