I just went through the approval process with Aetna and was finally approved today for surgery June 7th.. I was originally scheduled for surgery on May 24th and on May 23rd at 4:45, they denied my approval. I was livid as the entire day of the 23rd I was jumping through hoops to get them the documents that they required. They blamed it on my doctor's office when it was their incompetency that caused the issues. They said that my doctor did not send them the needed lab results as well as other documents when in fact, they were sitting in my file at Aetna's office. Be very careful with them. They required that I go through the pre-op program as well and I did everything they asked. I am the same height and weight as you are and I have severe sleep apnea that has been documented through a sleep study and am currently using a CPAP to correct it. That was what they denied me for. My doctor had to have a peer-to-peer conversation with their doctors to get me approved but finally, they did approve me.
My advice to you is to stay on top of what documents Aetna needs from your medical doctors and keep checking with them so you don't have to go through the stress I have just gone through.