I Have A Swollen Left Leg Causing Shooting Pain From

I have a swollen left leg causing shooting pain from knee to foot. Local MD's cannot diagnose. Have had catscan, dopler, cardio workup, over past 10 weeks with no results. I have been diagnosed with non diabetic peripheral neuropathy since 1999 and prescribed lyrica. Primary MD says leg problem is another nerve disease that is causing bloating and is submitting a request for Physical Therapy and Hoag Hospital to see if that will take care of the problem.