Welcome to the forum - the more you read the more you will feel you have made the right choice, the successes out there are so inspiring - however particularly when you have existing health problems it is sooo important to be well-informed!

Buy the book and read it from cover to cover, get your tests done before you start, browse some journals and the sucess stories forum - I believe there is one in particular that deals specifically with a huge success in blood work, heart concerns. Use the search to find threads that deal with blood work success

I wish you well in your journey, and hope you find this forum the fountain of information, advice and support that you need.

edit: I notice that at this stage you haven't chosen a plan - check out the quick link to the right "which low-carb plan is right for me?" to help you in your decision