I grew 3.5 inches in the last 2 years, but the problem is I am 26!?

Can someone tell me if this is normal. I was 5'9" at 16..then shot to 6'4" at 18. I reached 6'7 and stayed there until (about)24 yo. Now I've been getting comments that I look taller, so I got myself measured, and I am 6' 10.5" (that's 209.6 cm). Someone tell me this is normal.