Hello! I'm a 270 lb, 5'6'' female looking to start C25K. I find myself to be fairly healthy despite my weight...with the exception of being able to run.
So I'm just going to dive in with C25K! I'm mildly crazy, starting in the dead of summer in southern Louisiana, but I'm going to do it.
I'm on a keto diet right now as well, so hopefully this will really help weightloss efforts. I hope to be below 200 within a year...lofty goal, perhaps, but I've done it before. I've lost 16 lbs in 2 weeks, so I may just do it!
I've made a lot of lifestyle changes in the past few months...all leading up to something like this, I think. Quit heavily drinking about 3 months ago. Quit smoking 50 days ago. Gave up being a vegetarian about 2 months ago, after I realized I was gaining and gaining and sick all the time.
I bought a pair of nice running shoes 3 years ago, that have just sat in my closet until about a month ago, when I finally joined a gym. But getting to the gym has been a hassle, and takes a bit too long to do in the mornings, when I have time. I'd rather stay in my neighborhood and do something there.
I plan on running on soft ground, to minimize any impact issues. I live in New Orleans, so streets have a neutral ground that is grassy, leaving a perfect running trail, especially along the street car lines! Also, it's pretty. 
So starting on Tuesday morning, bright and early, I'm going to lace up my sneakers, leash up my dog, and hit the neutral ground. Wish me luck.