Hi Lou sorry to hear your doctor has taken you off LT but please don't worry to much about the restart, my doctor did the same a month ago and I had only been on it 2 weeks and she made me stay off until I saw her in 2 weeks time, and although she not a big fan of it she agreed to let me go back on.
I am now on day 11 and even went into ketosis earlier this time and did not really struggles.
So chin up and enjoy the healthy eating for a couple of days anf if she still moans about your iron levels ask her for some iron pills, my old doctor gave me them when I first did LT.
Have a good easter (and try not to get too dishearted)
Jo x