I'm teetering between Stage 3 and 4 CKD and just started EPO injections to raise my Hemacrit and Hemoglobin levels. Has anyone else had these shots and if so, how long was it before you noticed an improvement in how you felt? Did you feel better after a few weeks or did it take months? I guess I'm impatient but would like to know what to expect. I won't see the doctor for 8 weeks when I have my levels checked again. In the meantime, I feel like a useless human being and my life is ticking away.