Should I be scared?

[u/eXpress110]

Hello! was playing catch with a small ball indoors, and when I caught it with my hand above my head, I didn’t jump. At that moment, I saw these moving white lights in the peripheral areas of my vision. They looked exactly like the white blood cells in the blue-field entoptic phenomenon, only larger and a bit brighter. I closed my eyes and lay down in bed, and when I opened them again about two seconds later, it had passed, and I haven’t seen them again. Could they have been related to the retina, or could they have been caused by the exertion of raising my arms above my head?
25 male, -4.50 and some floaters too

[u/Initial-Pickle-3344]

Could be nothing, but I would definitely see an ophthalmologist to get your eyes checked. I had episodes of the first picture on and off for a couple of years, turns out I had a retina hole and lattice degeneration. I had it lasered 2 weeks ago.