Wow, 20 lbs in 18 days is brutal, but possible. Being scared before surgery is perfectly normal. I was terrified! All I kept thinking of was all the horror stories I have heard and I didn't want to die! But I just kept reminding myself that I REALLY needed this surgical tool to be healthier and become more of a participant in my family's life. I could barely walk without a cane last year. Now, to be honest, I have had minor complications, but I have no regrets! It won't be easy, and it will be an adjustment for your family and friends. But when you have more freedom and energy you will be so much happier! All this struggle will be TOTALLY worth it!