Most Helpful Guy
I am not a doctor but that seems really low. but height/weight ratio's are not cookie cutter, everyone is a little different. consult with your doctor.
for instance I am 6' 3" . I once saw something that said my ideal weight would be 175lbs. I am bulimic (in recovery but still..) and when I was heavily into it I was down to around 182 and I looked pretty sick. so no way I can even do 175. My doctor thinks 225 is best but 250 is ok. I am 270 and fine with it.