Does frequently wearing my hair in a bun affect hair loss?

I've been tying my hair up in a bun almost every day lately.

I suddenly heard that this might be bad for hair loss, so I'm worried...

I always tend to tie my hair tightly, so I feel a bit of tightness on my scalp, and

It seems like I lose more hair when I let it down.

I am wondering if this is temporary, or if it could lead to real hair loss if it continues to happen.

If anyone has had a similar experience, please let me know if it had any impact and how you managed it.