I'm sorry I can't aid you with your question but congratulations for recovering :) I'm so happy for you! I've also suffered from Ed's and I understand how much suffering it can cause physically and mentally.
I hope you have a healthy relationship with food now :)
What's the difference now? The answer is yes, it can cause all kinds of problems because of the lack of nutrients and at that young age when you're still developing it's particularly hard on people, but you could have ended up looking this way anyway. I was never anorexic but I've always looked a lot younger than my age and have never had a thick beard. I didn't need to shave regularly until I was almost thirty. So again, why worry about what you can't change? Just enjoy that you got over it and be well.