It sure can,but if this person is on antidepressents or antianxiety meds they can be the biggest contributer.When you are depressed your body slows down as mainly all you want to do is sleep to make it go away so you're not up and moving.Chills,muscle and joint pain,dizziness are all not uncommon with this.They claim Cymbalta helps with theses symtoms,my husband and our daughter is taking that med which has not helped with either the pain or the depression,but each of us is different so it may work on some.But get some help as you suffer so much with this illness it has to be addressed.Good luck