80 down/20 to go

Hello all,
Perhaps MyFitnessPal will be what I need to lose that last 20 - I need motivation to MOVE (so I am joining an online forum - ha ha!). I lost 85 lbs in 2010 and have maintained 80 of that weight loss. I did not diet, but incorporated a lifestyle change. I read lots of diet plans, but most cancer prevention books, newsletters, etc. and wanted to ensure I journeyed not on a temporary weight loss path, but a lifestyle that promoted cellular health.
My numbers were borderline pre-type 2 diabetic. I had chronic back pain - 2 surgeries L4 S5. And nervous about symptoms that could contribute to or indicate colon cancer in my future...if I did not change my ways I knew I would be in trouble.
Ironically, a few paragraphs on nutrition in a hormone balance book "What Your Doctor May Not Tell You About Breast Cancer" changed my life and were the catalyst for my change. (Which I read after attending a local women's wellness seminar.) I became a student of reading ingredient labels, and learned to avoid all things artificial. I am now passionate about health education and blog when I get the chance - I love to try and come up with clean eating recipes.
I lost my weight without exercise, and I know I will need to get moving to lose the last 20. I do feel like a new person and my doctor said i took 30 years of my age (past 50 IRL). I am on no medications and have lots of energy, but I would like to incorporate some strengthening and balance exercises as my atrophied foot (much better with a good hiking boot) has me limping if I walk more than several miles and I lack power to bike uphill.
This is probably a long intro - but i look forward to learning from those who perhaps are on the same journey.