I need some ideas from the ladies

 Shixa,  I can't make my wife go to the doctor when she is bad sick so she'd never go have surgery unless she was almost dead and couldn't make the decision.  She doesn't have the bmi for it anyway. She works out almost every day and eats as healthy as she can.  

Thanks for the "good guy" comment.  I'm not so sure, lol.  I just want my wife to be supportive and know that I'm not going anywhere.

Thank her for sharing that with you.  That is a very scary emotion to be experiencing.  And very scary to share with your spouse.  Huge that she could tell you (some of us only share that with our girl friends).  Agknowledge that for sure!  and keep the communication going with things that make her feel secure.  What makes her feel secure in your relationship?  If you know the answer to that, keep those things and words coming.  Do or say at least one thing a day that makes her feel secure with your relationship and keep it coming.  Sounds like she maybe scared of the changes that she may have to make in herself too.  You can't do anything about that but just be aware that she maybe doing some soul searching too.  IT's hard to see your spouse go through life changing events (even the planning of them), and she may not be ready to change herself.  Patience will be important.  Nice that you shared this and that you asked for ideas.  Shows you are a good guy on the right track.  Goodluck.