Racked my BGS over to my secondary glass carboy after 22 days in the primary and after a couple of days I'm seeing some weird activity from the leftover yeast that made it to my secondary. I attached a pic showing what I believe to be some small clumps of yeast still alive and floating in my wort. While some clumps are sinking down to the bottom of the carboy, others are floating up to the top then sinking again. They are pretty much doing vertical laps in the pool. Is this normal? Or is it weird that the yeast looks like that and is still active after almost 1 full month? This is my 1st secondary fermentation. Thanks in advance for any insight.