Is it even possible to grow in height later in life ?

[grampahol]

I always measured in at 6' even up until the past few years..My dad shrank, but I'm apparently getting taller.  First it was at a doctors office a few years ago and I thought it was just a mistake, but I just measured myself with my shoes off using two pieces of wood glued at 90°, one section flat against the wall and the other at the top of my head..I wanted to get as accurate as possible..Well I'm 6'1" even.  Is it possible that they made mistakes for over 40 years measuring me or could I have actually gotten taller in my old age? I want to die at 7 feet, 9 inches.. What the hell, huh?