You probably have scar tissue buildup that is causing the pain. You need to have that broken up before you can get back into running pain free. The best way to have that done is to find a practictioner who performs Active Release Technique (A.R.T.) I can't link to anything here (per rules) but you can google it to learn more and to also find a practitioner near you).
ART really works, and helped me return to running 6 months after surgery pain free. I won a couple of gold medals in sprinitng at the RI Sr Games and am trauning for a half marathon next month.
From the ART sie:
"ART is a patented, state of the art soft tissue system/movement based massage technique that treats problems with muscles, tendons, ligaments, fascia and nerves. Headaches, back pain, carpal tunnel syndrome, shin splints, shoulder pain, sciatica, plantar fasciitis, knee problems, and tennis elbow are just a few of the many conditions that can be resolved quickly and permanently with ART. These conditions all have one important thing in common: they are often a result of overused muscles.
How do overuse conditions occur?
Over-used muscles (and other soft tissues) change in three important ways:
•acute conditions (pulls, tears, collisions, etc),
•accumulation of small tears (micro-trauma)
•not getting enough oxygen (hypoxia).
Each of these factors can cause your body to produce tough, dense scar tissue in the affected area. This scar tissue binds up and ties down tissues that need to move freely. As scar tissue builds up, muscles become shorter and weaker, tension on tendons causes tendonitis, and nerves can become trapped. This can cause reduced range of motion, loss of strength, and pain. If a nerve is trapped you may also feel tingling, numbness, and weakness."
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The other bit of advice I'd give is to NOT run every day! At least not when you are just starting back into running. There is a wonderful Resurfacing to 5K program that I used and posted here awhile back. Consider doing this, it worked quite well for me:
http://surfacehippy.info/hiptalk/running-ironman-marathoner/resurfacing-to-5k-program/Good luck!