Hello. My mother is 53 yrs old. From past a week she has sharp pain in her left leg calf muscles while walking. The moment she tries to walk faster, she has this sharp pain which makes it difficult for her to take another step and lift her leg. We did a uric acid test and she has high uric acid levels. She is taking medications for that now. Is this only because of uric acid or any other nerve problem? She does not have pain while sitting or standing. Only when walking fast, she gets this sudden onset of pain which makes her difficult to take another step and lift her leg. Please advise.