Could it be an incarcerated uterus ???

I have checked out all the websites describing an incarcerated uterus, and I know my uterus was tipped before I was pregnant ( but have not been diagnosed since becoming pregnant). I am 16 weeks along and for the last two weeks have had a numb feeling on the outside of my left calf. ( It started out feeling like an Indian rope burn, but seems to have lost some feeling now.) I was wondering if anyone who has had an incarcerated uterus had this sort of symptom. Also, other than a varicose vein, what do you think the problem could be?