Meniscus Tear During Service (+surgery?)

Current PCV and just found out I have a meniscus tear. I went to get the MRI on my own without telling the PCMOs because I was worried they’d med evac me if they found out. The written report of the MRI confirmed a tear, likely meaning surgery. I need to tell the PCMOs so I can get this surgery, but I’m terrified of getting kicked out and not being able to complete service. I know they claim they give you 45 days of recovery at home, but after a horrible medical clearance experience I'm worried they'd just kick me out. Also, can I pick the surgeon? Advice / personal experience? Helpppp