Suggest Remedy For Terrible Pain In Left Leg

Hi, i have terrible pain my left leg, it stays all the day but increases at night time. i'm 34 yrs old, pain doesn't have any starting point, it moves one place to another, even if temp is warmer, bones inside feels cold. I usually tied up my leg, to release pain, and taking stretches/exercise too. Dr advise me to take Tylenol, but its not helping.please suggest.