What Causes Heart Palpitations And Body Pain After Kidney Stones Removal?

I am concerned about my son who is 45 years old. his skin is very sensitive to both hot and cold and he can not stand to have his clothes touch his body or have his sheets from his bed to touch his body. He has diabetes and it runs about 225. he has recently has kidney stones removed by surgery. He tells me that his chect sometimes pounds and his body aches all over. When speaking with him the other night he told me that he was so tired he was holding the phone in the other and he had very little strength. He can not sleep either in bed, or on his side, sitting up and he hasn t had a good night sleep in month because he cannot rest either sitting up or laying down. He has become very depressed and I am very worried about his physical and emotional well being. if you have any suggestions I would certainly be grateful for any guidance to where we could start to unraveled this mystery. Thank you A concerned Mother