Hi tara, I know this is an old post but I can't find the original Youreatopia website...!
do you have any recollection of the original material on youreatopia site? I looked at it a couple years ago but was in denial of my disordered eating.
Here is a link to the blog portion of the website. I too suffered from anorexia and disordered eating and used Youreatopia (and Matt Stone's stuff) as a guide for recovery. I am not a doctor and I realize your question was not for me, but I would stay away from taking drugs/medications while recovering. Many GI issues are likely to go away once your body starts to heal since digestion is usually compromised in people who are chronically undereating. If you want more information on this, I emailed Gwyneth and asked her thoughts on food allergies, leaky gut, dysbiosis, etc. and can send you her response, but in summary, she says, "For what it is worth, I would suggest steering clear of investigating food intolerances and hyperpermeability unless there is no improvement in symptoms after 18 months of being in solid recovery."
Unfortunately, overcoming an eating disorder has a huge mental component. It feels very uncomfortable to gain weight even if you need to; you begin to feel like an alien in your own body. Weight gain usually happens rapidly when finally eating enough (and more) and your hormones, hair, digestion, etc. take a bit longer to catch up, so it can be daunting waiting