I lost 145lbs in 14 months doing an adapted version of the Dukan diet. I did not exercise throughout and had regular and consistent weight loss. I then spent a year maintaining, but gradually added on 9lbs.
I now have access to a gym and as I am on vacation have been every day for 7 days. I appear to be gaining weight, not losing ! Could this be water weight? My muscles are quite sore, and of course I am in Florida so temperature could be a factor? Just wondered whether anyone else has gained at the beginning of exercising.