Surgery
I was about 280 when I started and by surgery I was around 265. Anesthesia went just fine for me, was out before I new it and awake with many questions. I wasn't terrified but was a little scared because I was alone and had no one waiting for me, but the staff were so kind it didn't bother me to be alone. I look at my surgery this way: if I didn't get it done to help me lose the weight, I could end up dying sooner then expected due to my obesity and having a rare blood clotting disorder called Factor 5 Leiden.
Have you met with your surgeon yet? I think as long as you have a skilled surgical team who is familiar with, or has worked with patients similar with your stats, you should be in good hands!
Prayers for comfort and I hope you get the answers you are looking for.
I am 340 with early stages of sleep apnea (no machine), I have high blood pressure currently on meds to regulate) pre-diabetic, and high cholesterol (+ everything else), 5'4". I have one last appointment next week and then can be submitted for surgery, so I think I will have my heart monitor test done once everything has been cleared.