Just wanted to say that you have done a great job so far and after loosing 70 pounds I would be jumping for joy!

Are you saying that you lost 70 pounds through diet alone? If so, may I ask what your diet plan is?
If you are indeed still overweight you will need to either cut calories or exercise more to loose more pounds. Not knowing what you are eating or how many calories you are consuming and your height might make it difficult to give you any further advice but perhaps some of the kind folks on this forum will be able to assist you more than I can.
Good luck on you goals and take a bow for your accomplishment!