Hi My dad is 76yrs, 2 yrs back he was loosing conscience so we took him to dr we came to know he has multiple myeloma..We also did the dialysis as part of the tests due to his cretina was increasing he came back to his senses. we started the chemo for mylemo, he was better. Few months back we changed medi for chemo from ingestion to tablets he was getting drowsiness not able to walk properly. it is due to change in medi. We changeback. now it is worst dr don't know why he not able to stay awake