What Could Cause Numbness In The Legs And Shortness Of Breath?

For past 2 months my hands are numbing very bad and my legs are very weak in strength and now I very heavy in my navel like strain when standing or singing in the choir. I can t pick up something heavy feel like my legs or lower body will give out. I have high blood pressure its fine and cholesterol its good but my hand is totally numb now really bad and my breath has gotten shorter. In the past I have had vitamin D defiency took pills but not in a long time. I am schedule to see the doctor.