Lio, you're not going to die from a low carb diet. The fact that your doctor told you to go (back) on a low carb diet means that people are finally starting to see the benefits of it. As far as your friends telling you that you're going to "die" on a low carb diet, ignore the morons. If I had listened to all that, I'd still be 270 pounds now instead of 200, and a 46 waist instead of a 38. Fuck what uneducated people say about something, and do what's best for you.
But 10 or 15 pounds, that's not a lot. For that much weight, you shouldn't have to eliminate ALL carbs, just BAD carbs. Avoid cookies and ice cream and pizza and anything with processed flour and shit. Talk to me later if you need any more advice, or go buy Dr. Atkins' book (I don't know if you already did before). Enjoy.
So Speaks The Gatekeeper...So It Shall Be!