Apart from x-ray what r obvious signs of fractured ankle/foot it's swollen can walk but painful to swells more wen i do?

Difficult to tell: Clinically, it is difficult to differentiate an ankle fracture from a bad sprain. A rule of thumb generally used is that if you can bear weight or walk, it is less likely you have a fracture. If you have continued pain it is best to see a physician.

X-ray is necessary: I had a patient who injured an ankle while on vacation in the Caribbean. She didn't want to go home early, so she continued her trip for a week with mild discomfort. Upon her return I immediately ordered an x-ray. She had a displaced fibula fracture that required surgery. Unless there is obvious deformity or bone sticking through the skin, x-ray is needed for the diagnosis.