How do you feel under Ocrevus

Hi all, New at this place I directly wanted to push a question into this great community. I have PPMS and I am under Ocrevus now since mid of 2017. it’s my first medicine since the diagnosis 2017 and at this time I didn’t really feel ill. Now 5 1/2 years later my walk is heavily effected and I feel really ill. Can’t really explain but my legs are hurting and my general condition feels like during a heavy cold. Anybody else under Ocrevus doing same experience or something comparable?