WHY IS MY BODY SO WEAK?

i kno that i am anemic but latley my bodu has been getting weak its getiing hard for me to strap my bra, pick up my kid, and when i lay down i can seem to sit back up without grabbing ahold of something , i cant run or it feels like my legs will give out, what is wrong with me, also my mouth feels weak to i have a hard time eating, is there a solution for my problem... please help this sux thanks!!