My upper thigh was killing when i walk it's since moved down my legs and now the other leg has started hurting can you tell what i can do please plus ?

Spinal Stenosis??: With the limited information you have provided, a few concerns are possible. Spinal stenosis affects the legs while walking, Hip joint arthritis/bursitis can cause pain with walking. Vascular problems may also. I would suggest a medical consult. Many factors (your age, duration of problems, location, description of pain, other health concerns, etc.) are involved in solving your concern.

ER or Urgent Care : You need to be seen asap, no delays, good luck