What Causes Pain Around Shoulder And Chest After Masturbation?

When I wake up I found my shoulder and back some thing like I have done w lot of work,,,,, n if I exercise then after some time I feel a sharp attack type pain in between chest,,,,,n soonly it disappear,,,,, this problem apoears more when I musterbate,,,,,,, at the same time I feel pqin on my spinal,,,,,is it related to spinal becquse when I press my chest I feel pain and the same time if I press the point on my spinal chord where I m feeling pain then pain pain disappeared for a short time,,,,,I also have some gasteric priblem n i always feel some sansation just below rib cage,,,,in abdomen area it is irritating,,,, wgat is it