Weak And Aching Hands And Arms

Is it normal to have a very CLUMSY, WEAK AND PAINFUL HANDS AND ARMS? Aside from my swollen feet and legs, it's getting heavier and painful. My OB told me to relax because it's normal and just to elevate the position of my feet when sleeping. How about for my hands? I can't even tie my hair and open a bottle cap. Been typing this message as well for minutes because my hands get easily "manhid and tired" of texting. By the way, I'm a first time mom, 33 yrs old and on my 8th month now. Your responses and advices would mean a lot. Thanks! :(