[Samantha Rogers]

I don't think it ever hurts to be sure. I have not ever stopped in three and a half years, but that is simply because my growth has been so slow recently that if anything I have been impatient for more. I was planning a short break soon, but only to try and reenergize a spurt and get out of what I regard as a stall.
If you have any doubts then by all means I would think taking a break to reevaluate would be a recommended course.