Jesus... that is impressive. Great work! That's doing it right.
To the OP: Hell yes. At 35 you got man strength. I loved my 30's. Okay so, you said in a year 10-15lbs. Question is have you ever had those 15 lbs or is this new territory? That's a big difference.
EDIT:
@11sh11 when I say man strength it's just an expression. Peak man strength. Um...