<s>[INST] I am 18 weeks pregnant and I have been having a wide spread feeling of numbness that started in my lower back about 2 weeks ago now it has spread down both legs and is starting to go into my left arm I had an MRI come back normal but this doesn t feel normal this is my 4 th pregnancy [/INST] Hi, Chat Doctor.  I welcome you to Chat Doctor VIRTUAL CLINIC. I have gone through your question, and I think I have understood your concern. Furthermore, I will suggest you the best possible treatment options. Furthermore, I will suggest use of calcium supplements and via min D 3 along with good quality protein. Many times as pregnancy advance deficiency of these items and changes of posture during the pregnancy lead to nerve Compression and numbness. I will suggest adopting correct posture. This will help to minimize numbness. I hope this answer helps you. Thanks  </s>