Is it possible I am seeing lights flicker with mains frequency?

So, I am extremely tired, and was sitting down, we have fluorescent tube lighting where I was, and if I didn’t pay attention to one specific thing and let my vision drift a bit, around the edges I noticed a fairly quick flickering. I looked up a 60hz example, but only found a tone so I don’t know if it matches but it seemed fairly close.

Now, the other part of this is, I have been up for… well, I’m too tired to figure it out, I was up around 4pm yesterday, it’s not 8:40 am so it’s been a while. Maybe it’s just a side effect of my tiredness?

or do I have some special power? p.s. currently watching sanctuary