When I get up in the mornings I can hardly walk. My feet hurt to walk on them. Not at my heel but farther up my foot on the underside. After a while I get ok what could this be?

I'm sorry to hear you're suffering... I also have the same symptoms. I've been diagnosed with Plantar Fasciitis, and the following is a description:
Plantar Fasciitis is caused by repetitive strain and is the most common cause of localized heel pain. It is an inflammation of the plantar fascia, a ligament structure that supports the longitudinal arch of the foot. The plantar fascia is a tough, fibrous band of connective tissue that runs from the heel bone to the ball of the foot.

Common Symptoms:
Starts as a dull, intermittent pain in heel or arch, progressing to a sharp, persistent pain.
A sharp, piercing pain and/or inflammation through heel and foot that usually occurs in the morning or after resting and gradually disappears with walking.
Tightness in calf muscles.
Symptoms may be spontaneous.

Common Causes:
Inflamation and pain result from increased activity or in association with aging.
Inflammation is usually the result of athletic activity and can be very painful, especially in the morning after cramping of feet and legs during sleep.
Flat feet or high arched, rigid feet.
Poor supporting shoes.
Large weight gain in a short period of time.
Other family member(s) with Plantar Fasciitis.
Running on hills or balls of feet.
Running on uneven surfaces.

I hope this helps, and that you find some relief from the pain.
Cheers,
-L.