Don't be afraid. It worked great for me. I was dead tired anyway so I didnt noticed being more tired. Went once a week for 7 weeks and level went from 4 to 85 but now is down below 40 so I might go back for more.
They gave me 2 tylenol first and then pushed a bag of pepcid to protect my stomach. Then the iron took about an hour. I felt fine afterwards and drove myself to every appointment.
Hope you both feel better soon. Chins up