Im was so exhausted that I could'nt stand without falling, most of the time and when I tried to walk I would fall into the the walls, I fell 3 times in the shower. I called the cancer center and they told me to use a walker. after 2 weeks I went to my gp who did blood work amd to the hospital I went for 3 days, He said my blood was low gave me 2 units and potassium, not sure what else, but I went home walking tho Im very unstable and can only walk so far and im weak. 5 days ago when I went for 3 months out of rt and ct they gave me iv magnesium, I don't know a lot about the meds. But I feel so much stronger after magnesium, can walk, even did a little house work today. I wish they would check it more offen, they use to give it to me weekly during treatment and it help, I asked when I was down if they would take blood work and they told me they only would do labs before appointments, every 3 months.