For starters Anon - distension is very common during recovery periods for anorexia sufferers as your body reacclimatises back to normality - ie, eating and not killing yourself through starvation. You may encounter bloating and I for one have found despite not being physically heavier, I have gained almost two inches around the abdomen simply through this feeling of ultra-bloat. Your body will soon learn so long as you keep up recovery.
Regarding living with an ED in a new scenario, you should not keep it completely implicit. Let people know what you are enduring. That way, you won't feel so tempted, as I did, to withdraw entirely and let the anorexia be your sole thing in life to the point where your organs fail, you are dying... and you're all alone in that world you created for yourself.
I know my greatest folly was trying to keep my condition completely secret when in reality it was the thing that almost killed me. Weeks away from death, I was still in my tiny apartment, too sick to go to work, making excuses to avoid people, indulging the ED. Jaundiced, Bladder infection, Kidneys failing, liver damage, respiratory problems, muscle atrophy.
Hardly ideal set of circumstances to be doing a degree to, eh?