LOL suki. It's a wee bit early for you. GCMS notes (formerly CAIPS) are the notes the various immigration officers involved in processing your file make on the file. They are supposed to record work-in-progress events such as the conclusion of background and security checks (pass or fail), the receipt of medical results (pass or fail), and the selection decision (pass, convoke for interview, fail) and so on. If there is an interview, they also record the date scheduled, the concerns to be addressed by the applicant at the interview, and their notes on the conduct of the interview.
In a case like RG's, whose application was filed almost a year ago, it would be a good idea, to give her some insight on what is causing the delay. For someone who is convoked for an interview, it is a good thing to order if there is sufficient time to receive them (takes about 6 weeks). It gives invaluable insight into the mind of the case officer, so the applicant and sponsor know what areas to prepare to address at the interview.
Happy bday to LW hubby 
