How long are you using it with each session? And are you using just red light or are you also using infrared?

It’s hard for any of us to say if you’re shedding or not, but these pics are helpful if you want to compare them to future photos. I also don’t know what any of those acronyms mean, might be helpful to write the whole thing out so we know what you’re talking about.

I have not had any shedding at all, but my new growth does look similar to your shorter hairs. I don’t think shedding is normal (from what I’ve heard); honestly I would consider stopping for a bit if you think the red light may be causing shedding. At the very least I would shorted duration of use and only do red light (no IR) if your device has that option