I haven't had work done. The thing is, like I said, when I stuck to it my previous diet was working at a pretty good 1-2lbs/week clip, sometimes more. The only time it stopped working was when I stopped adhering to it. The Velocity Diet was just to speed things up with its promises of 15! POUNDS! OF BODY FAT LOSS! and ensure I hit my goal weight. Basically, I got a little bit panicked and a little bit greedy.
If, with my old program, weight loss remains halted I would see about getting my thyroid and all of that checked.