Female 52yr, 5ft4 160lbs have fibroid in uterus, but normally very healthy, I ve been experiencing sudden onset of Severe!! Pain in my upper left Shin, no warning when resting, sitting, or standing, no particular pattern, no warning stabbing pain hits..feels like nerve pain, just under the skin under left 3in under left knee on top of shin, the pain is EXTREME comes last about 3-30 sec(the longest 30 sec) same spot each time, can come one day 2 time short sec. leave come back day later or next. Also experiencing feeling like little worm crawling under skin on left calf.