Pains under my foot when i wake up in the morning or after resting my legs?

Plantar fasciitis: Sounds like it could be plantar fasciitis, a common cause of foot pain after rest. Stretching exercises, anti-inflammatories, orthotics, night splints and physical therapy can aid in the treatment of plantar fasciitis. If these therapies don't work, a physician might be required to perform injection therapy, electrotherapy or even a surgical release of the plantar fascia.

Could be...: Plantar fascitis if the pains occur mainly in the heel area and even possibly the arch. It could also be generalized arthritis and a number of other possibilities. Take the insoles out of your shoes and replace them with ones that have more arch support. The one i recommend most is the spenco polysorb cross-trainer insole. If you don't need as much cushioning, the total support is also good.

Foot pain: If the pain you refer to is under the heel the most likely answer is plantar fascitis which can be treated with stretching, ice, nsaids custom orthotics and injections if those fail then surgery.