Is it normal I become extremely exhausted walking up the stairs?

I have anemia and it sucks, I can be okay for a while then suddenly my vision goes blury, my ears sort of close up, climbing into bed can be so exhausting, I'm constantly feeling dizzy and sometimes my hands shake. I'm also recovering from bulimia so you can imagine the toll it took on my body. Do you have eye bags like I do and look tired all of the time? Go to your doctor it sounds like it could be low blood sugar or even anemia you can't be sure til you make that docs appointment.