Roberta, I am so sorry to hear that you have to spend most days in bed!
When you feel up to it, can you please provide more information addressing the following:
1. What does TLD stand for?
2. What type of doctor is making you wait 3 months with such a low ferritin level? When is your next appointment?
3. What tests has this same doctor taken so far to assess your "iron issue"? How did your doctor define "iron issue"?
3. What supplements is your doctor having you take?
4. Are you taking iron? What type? How much? How are you tolerating them? Do you have to take them on an empty stomach to help absorb them?
You may want to read my two earlier posts:
(1) my 3/30/23 post above and
(2) my post about having iron deficiency anemia and feeling like you did which you can find here: https://connect.mayoclinic.org/discussion/new-to-anemia-what-to-expect/?pg=1#comment-826977
I hope you will experience better days soon.