Sore feet all of the time

2007-2009: Wore heels almost everyday.
2009: Pregnancy, stopped wearing heels.  along with major back problems, my feet started hurting.  Gained 50lbs.
2010: Postpartum, feet continued to hurt, I assumed it was hormones and it would go away eventually.  
Currently, I have 10lbs to lose to reach pre-pregnancy weight, but they still hurt.  Chiropractor says its plantar fasciitis, podiatrist says its morton's neuroma.  I do not think it is either one because my symptoms don't completely fit either.  On a side note, my podiatrist also told me my feet are very flexible.
Symptoms: Mainly feels sore, as if I've been walking all day.  Most pain is in the ball of feet.  I can't even go grocery shopping without my feet throbbing after.  The soreness is felt into my calves now as well.  
I ice my feet everyday, do streches, and wear orthodic inserts in shoes.  I used to be barefoot most of the days but have started wearing my shoes with inserts for the past 2 months during the day.
Received cortisone shots, pain subsided for about 2 weeks and have returned.
Any ideas on what my condition may be?  Should I get custom orthodics made?  Please help!  I'm desperate to get some relief!  Thanks.

[Dr Vinod]

Hello!

Try all conservative treatment. It is appropriate time to wear custom orthotics to reduce any pressure on your feet.

Get yourself examined by an orthopedician and go for MRI scans to rule out any stress fractures or soft tissue tears or sprains.

For non specific pain it is appropriate to see a neurologist. Also rule out other medical conditions such as diabetes, thyroid disorders and any peripheral vascular disorders.

Take care!

[Dr Vinod]

Hello!

Try all conservative treatment. It is appropriate time to wear custom orthotics to reduce any pressure on your feet.

Get yourself examined by an orthopedician and go for MRI scans to rule out any stress fractures or soft tissue tears or sprains.

For non specific pain it is appropriate to see a neurologist. Also rule out other medical conditions such as diabetes, thyroid disorders and any peripheral vascular disorders.

Take care!