Heal Pain and Sore Legs

Well, it's happening...I heard that when you reach 24 years old your body starts going down hill. I don't know this to be a fact but it's happening to me! Okay so it's not that bad but I've recently begun experiencing pain in me heal and lately my feet and legs are achy tired at the end of the day most consistently, and I'm not pregnant! So I got online and looked up heal pain and came up with "plantar fasciitis" which means "It's an overuse injury affecting the sole or flexor surface (plantar) of the foot. A diagnosis of plantar fasciitis means you have inflamed the tough, fibrous band of tissue (fascia) connecting your heel bone to the base of your toes." (http://orthoinfo.aaos.org/fact/thr_report.cfm?Thread_ID=144)
"You're more likely to get the condition if you're a woman, if you're overweight, or if you have a job that requires a lot of walking or standing on hard surfaces. You're also at risk if you walk or run for exercise, especially if you have tight calf muscles that limit how far you can flex your ankles. People with very flat feet or very high arches are also more prone to plantar fasciitis."

Anyways, so after my reading at a view different sites I believe that the following have contributed to my sore feet and heal pain: wearing flat flip flops with no arch support every where I go since moving here. Going on long walks 3-5 times a week and pushing a double stroller( up hills too. --I do wear good sneakers when I do this however) . Walking around barefoot whenever I'm not wearing flip flops. Being on my feet for almost 12 hours a day! I do sit throughout the day, but with 2 little guys under the age of 2 I really don't sit a whole lot, so that and also carrying them too. Anyways, I did some more reading for what is the best sandal to wear and what nurses prefer most (since they work 12 hour shifts) and up came Birkenstocks. Well, as it turns out I own a pair of Birkis Aruba sandals and only wear them occasionally just because I prefered my flips because they're so easy to get on and off and go with anything you wear. So I put them on this morning and have been wearing them for like 6 hour now and my feet don't hurt at all(yes, it's gotten to the point where my feet are now hurting a bit in the morning too). I'm really amazed...and thankful that these sandals are helping and the pain has subsided so quickly.