Hi, I Noticed Recently That When I Wake Up In

Hi,
I noticed recently that when i wake up in the morning i have numbness in my legs. There were instances were i fell when trying to stand. After couple of minutes i be alright but this is scaring me. I also have main in wrist (both the hands), I have a should spasum, its not really bad but it started 6 months agao as i work constantly on computer. Please help me understand whats going wrong ?