Thank you for your query at DoctorSpring.com
I understand your concern.
You definitely do not have an eating disorder, what you did was probably due to the frustration of not being able to lose weight easily. Some people have very bad metabolism. There will be no long term effects, so please do not worry. You should stop thinking about it completely too.
You need to exercise daily, like walking or running for 1 hour daily targetting 3-4 miles a day. And you need to eat healthy food and avoid snacking in between. If you can do this consistently you will start losing weight. Avoid sugar and other beverages.
Hope this was helpful,
Feel free to discuss further.