That must be so difficult to deal with, plus the fact that the doctor did not believe you must have made it harder.
I am glad that she is now getting a sleep study and it must feel like such a long wait until you get the results.
I am glad you got the sensor mat for her, it has probably helped save her life.
A friend of mine, her son was also stooping breathing, but they found out, after his mum fought hard to get him seen and her believed, that it was his andnoids(sp).
He got an operation to get them removed, and I think he got his tonsils out too. Now he is fine, and he had his operation about 2 months ago.
Keep us updated.