Are you well, healthy, or fit? Or some combination of all three?
Personal wellness is such a difficult thing to define. You can look fit and 'in shape' but have an underlying chronic disease. Or you can be 40-50lbs over your 'ideal' weight and finish an Ironman triathlon (I've seen that done on many occasions). So looking at someone is not a good way to measure how healthy they are. You might instead to measure their activity level, or monitor their diet, or take their blood pressure, or look at their body mass index, or count the number of steps they take in a day. You could look at their family history or the kind of job that they have or even the kinds of vitamins they take every day. The truth is there's no hard and fast way to measure wellness.
What I would like to suggest is that if we all take our current state of wellness as a starting point, we are all either developing illness or developing wellness. In other words all that matters is what we do from today onwards. We can make a conscious decision to eat healthier foods, become more active, and make our health a priority in our lives or we can move less, eat foods that we know are unhealthy and wait for disease to take over our lives. If you're not sure which foods are healthy or don't know how to get more active then make a conscious decision to seek help.
If feeling better, looking better, and living longer are not incentive enough to want to 'develop your wellness', consider the financial cost of not doing so. Even the best health insurance policies come with deductibles, co-pays, prescription costs and, of course, premium hikes. It's estimated that personal health care expenditures are now at $2.5bn per year in the US, or roughly $7,500 for every man, woman and child. Take care of yourself and you could potentially pay considerably less. If you're developing illness from today onwards you are probably going to pay a lot more.