Forgot to mention, these are pounds and if I calculated right, 10 stone 6 is 148 lbs.
That depends on your frame size, as well as your age.
Your frame size is how large your bones are. Here's a bit of height weight chart, that pertains to your height, but only if you are an adult female. If you're not an adult, the figures would be different.
Height Small Frame Medium Frame Large Frame
5'5" 117-130 127-141 137-155
You can pretty much determine your frame size by looking at your hands, feet and shoulder width. If those are small for people your height, you'd be small frame, if they are average, medium frame and if larger than most people your size would be large frame.