Why have i got pain on the top of my foot making it hard to walk, it is agony in a morning when i first walk on it, had it for 6 weeks now?

See Podiatrist: Could be a stress fracture or other injury to bone or soft tissue. Pain of this nature, especially for this long is not normal.

6 weeks of agony?: End the agony and visit the foot doc. You may have extensor tendonitis, you could have a stress fracture. A doc should be able to give a confirmatory diagnosis and help start relieving your pain.