Can you post pictures? Do you have her paperwork so KNOW her age? How many weeks have you owned her? Runts frequently grow up to be normal size but with normal food cause it's GENETICS that will affect this.
What are you feeding?
MACH3 Bretta Lee Wildhaus MXG MJG MXF MFB TQX HIT CGC TC
Glory B Wildhaus AX, AXJ, XF
plus Miss Osin Blue Wildhaus
"Nothing new can come into your life unless you are grateful for what you already have. ~ "--- Michael Bernhard, gratitude