Suggest Treatment For Loss Of Balance And Weakness In Limbs

my legs have involuntarily collapsed under me. I lost balance and my legs, like spaghetti wouldn t work. I tried to get up by my legs were weak and it took a minute before I could actually stand and walk. I am a health active 44 year old female. I do not have any family history of any diseases, I don t smoke and walk daily. This is now the second time this week it has happened. I have no pain at all. But tonight I am noticing my legs feel weak.