Advice about surgery insurance approval

Hi everyone. A little background: I went for a pre op appointment March 2021 and met with a surgeon whose office told me that if I was not less than 160lbs at 5’2 that they would not let me have an appointment. At the time I was that exact weight and had my appointment & surgery scheduled. Before they could submit to insurance, I had to move my surgery date as I had a change of plans with my school schedule. It’s now scheduled for May 19th and my pre op April 20th. I have Aetna PPO but I’m not even sure how to estimate how many grams will be removed. I gained 8 lbs with switching birth controls and nervous I won’t get approved. I’m a 36h and am freaking out. Should I call my insurance and find out more information? I’ve had years of acupuncture, pt and chiropractor for neck and back pain as well as 4 years of migraine/ headache treatment as well as shoulder divets from bra straps. Aetna says 665 grams per breast needs to be removed and my surgeon said last year that I’d be at a c cup. Does anyone have any advice ?

Update: called original surgeon they told me as long as I’m under 30 bmi which is there requirement. So I have to lose the 8lbs in a month which is going to be a tough deficit and hard work but if I can then I’ll have no problems being 160 getting surgery. I wish it was different and wish they looked at my overall health instead of just my weight. They claimed it was because Aetna has a bsa that looks at bmi and tissue and usually under 30 bmi is what they look for but we shall see come April what Aetna says. Thank you all for the advice and I’ll post again when I get approved for not 😊