Hi and welcome,
I am not really sure what you mean by "odd numb feeling but the numbness is not that strong", technically numbness is the 'loss of sensation', which will often additionally include pins and needles, tingling, burning etc altered sensations too......
The most common experience of numbness that most people can relate too is what happens when the circulation to your foot-feet is cut off whist sitting with your legs crossed for a long enough period, if you feel zip nadda nothing that's numbness, and when you feel pins and needles, tingling etc that's when the temporarily interrupted sensation to the foot-feet is actually returning.....by saying "the numbness is not that strong" i'm thinking you could be meaning a light tingling sensation instead of numbness...?
Question: "Is numbness in the face sign...could this be MS?"
Answer: There are far too many common causes for abnormal facial sensations that neurological conditions like MS are basically amongst the unlikely causation's so see your GP and dentist for a check up and i'd highly recommend you don't focus and become anxious about conditions it's very unlikely to be!
Hope that helps......JJ