What Does Numbness In The Lower Body Indicate?

I m 35, 5 3 135 lb. The past couple of days I ve been experiencing slight numbness from the waist down. The first night it was while I was in bed, the past couple days it s started later in the day. I just recently started escitalopram but I didn t see this as a side effect listed. I do have 5 bulging discs in my back and have been having sciatic pain the last few days also. My grandfather had ms. Hoping this is related to the bulging discs but should I be concerned that it may be something else?