It is a good sign -- they are processing your file. There is a temporary policy in place but it looks like your last Medical is too old to qualify -- I think yours is about 7 years old. So go get the new Medical as soon as you can. I was asked for a new Medical before this policy was in place, did it in June 2022, and Medical passed within 3 weeks of submission. Best wishes!
From IRCC:
In-Canada applicants
"We’ve put in place a
temporary public policy for immigration medical exams (IMEs)
until October 6, 2024.
If you completed an IME within 5 years of submitting your new application, include the IME number (or the unique medical identifier number) from your previous exam in your current application.
You may be exempt from completing another IME if you meet
all of these conditions:
- You applied, or are applying, for either permanent residence or temporary residence.
- You already live in Canada.
- You completed your previous IME in the last 5 years.
- Your previous IME indicated a low risk or no risk to public health or public safety."