I've been losing over 100 hairs a day since a month ago.. Is this hair loss?

I'm worried because I'm losing so much hair lately.

I used to just let a few strands fall out when I washed my hair, but starting a month ago, the amount of hair falling out suddenly increased significantly. Roughly counting, it seems like more than 100 are falling out a day.😭

Especially after washing my hair, when I look down the drain, I get scared for no reason because there is a lot of hair gathered there... Even after combing, I see hair on the floor, and I keep seeing it stuck to my clothes, so it keeps bothering me.

It doesn't look like my hair is really thinning out or that I've lost a lot of hair in specific areas yet, but it feels like my hair is thinner than before, so I get worried for no reason every time I look in the mirror.

I'm stressed about my hair, and I'm worried that this stress might be causing it to fall out even more.

My daily routine has been a bit irregular recently, but it hasn't been like there were any major changes, so I don't know why I'm suddenly losing weight like this.

So now I'm wondering if I should just wait and see, or if I should go to the hospital for a checkup. I've heard that it's best to start treatment for hair loss early, so I'm wondering if I should go before it's too late.

if Are there others out there who have suddenly started losing a lot of hair like me? If you went to the hospital, I am also curious to know what tests or treatments you received at the dermatology clinic.

Also, there are a lot of different supplements coming out that are said to be good for hair loss, so I'm considering trying things like biotin or brewer's yeast. I'm not sure if blindly starting to take supplements is the right thing to do, and I'm also curious if there are any that are actually helpful.

I've been losing a lot of hair for a month now, and it's causing me more stress than I expected. At this rate, what kind of treatment would be best? Also, what supplements should I take to help with hair loss? If anyone has experience with this, please give me some advice.