Neg x-rays today at ortho, doc dismissed symptoms of swelling and not able to bear weight on foot at end of day should i seek 2nd opinion?

Foot pain/swelling: YES! - something is NOT right - while x-rays are good - inability to bear weight associated with swelling is of concern - how long have you had symptoms?? Your family doc should be able to draw blood - looking for inflammation (sed rate) and consider getting a nuclear bone scan - looking for a subtle stress fracture. good luck