How can I lose the weight from Lyrica. I walk 5km every day, eat very little and still cant lose weight. It is a great drug. Many Thanks?

Not easy. Keep a detailed diary of all of your intake for a week or so. You may be eating/drinking more than you realize. After review of the diary, reduce you intake by at least 30%. With increasing age, it is harder to lose weight due to slowing of metabolism.
Wish you good health!