The thing is with endo, unless you have an acute problem such as a cyst that's in danger of bursting, or you are actively trying to conceive, it's best left well alone.
There are ways of controlling the pain and other symptoms, but they can't control the endo itself. It will do what it wants and constant interference by way of surgery or hormone treatment when it's not absolutely necessary will make matters worse.
That being said, you should be able to find out what they did see while they were in there. As has been suggested above, your GP might not have had the report yet, but you can always ask your consultant's secretary for that information.
I appreciate that it's all scary and new at the moment and under those circumstances I am surprised that nobody has taken the time to explain things to you. But don't panic. It's not going to kill you, and if the consultant feels that no further action is necessary at this time, you need to be speaking to your GP to find a way of dealing with the pain which suits you.