My 07 hog island female did this a few months back over a couple month period. Her over all shed cycle from going blue to actual shed didn't take quite as long. For her she would go blue for 1-2 days, go normal for 1-2 days go blue for another 1-2 days and possibly shed during this 5th or 6th day of being in and out of blue. And for a few months she shed once every 2-4 weeks or so. And she definitely did hit a major growth spurt. She went from being 3'6" and a little soft to 5'8" and nice toned solid muscle.
That's a lot of growing over a short period of time, so I don't think they really had a choice but to shed so often.