I'm suffering from body pains. Problems.

I'm suffering from joint pain,back pain,some times it radiates from back to legs and upper back to hands.. and my skin became very sensitive. it becomes redish when i touch it..sometimes i feel ichy. and sometimes i feel buring sensations from my body.. my bowel movements also changed.. i consulted so many doctors.. General physians,MD,Neurologist, Gastroentrologist, Orthopadic,Rheumatologist..All my lab test reports are normal.. but in BMD it is showing my bones are little bit weaker than normal.. and in my spin mri L5 is weak.. and middle l4 and l5 i have disc bludge and at my cyrvical spin between c4 and c5 snd c5 and c6 i have disc bludges.. i don't know .what is the exact problem.. why iam getting body pains,and skin problems.. iam request you to clarify my doubt.. and give me any suggestion related to this..Tnq