my husband is 65, he is experiencing intermittent chills with no fever, extreme pain in his right shoulder that he says feels nerve related as it radiates numbness down into his figures, nausea from the pain, lethargic, weak and now has dull pain starting behind both knees. The shoulder pain started 2 days ago with sudden onset of moving his arm to pick up a glass. The other symptoms started last night and progressing weakness and sleeping a lot today.