I Am A Perfectly Fit And Healthy Female 53 Years

I am a perfectly fit and healthy female 53 years old. non smoker, 120 lbs, eat healthy and with no risk factors for heart problems. i had an EKG done yesterday for a minor cosmetic procedure in their cosmetic office and it showed abnormal. They recommended i have another one from my HCP and have someone read it. i just had another one done and IT reads at the top: border line abnormal this time with a possible enlarged atrial and a normal sinus rhythm. I am waiting for someone to read it and give approval for a go ahead on the procedure. I am just concerned waiting for results and I already have my procedure scheduled waiting on release. Just wanting some advice and hoping everything is ok. Thank you