Keywords lose ranking

In the past few days, some of my keywords have lost their rankings, while others have dropped to page 2. Is Google changing the new algorithm recently?
PS：
The number of indexes keeps increasing

I would recommend you, re-audit your full website and fix onpage issues and check your backlinks, if you found any spam backlinks, disavow those spam backlink through google search console.

Last day Google has algorithm updated. Google said “Later today, we are releasing a broad core algorithm update, as we do several times per year. It is called the May 2020 Core Update. Our guidance about such updates remains as we’ve covered before.”



Thanks.

https://twitter.com/searchliaison/status/1257376879172038656

The reason because a new update is coming soon

There is a Google Core Update happening yesterday.

https://www.blackhatworld.com/seo/google-releasing-a-large-update-today.1228452/

https://www.seroundtable.com/google-may-2020-core-update-live-29403.html

Say a prayer to the search engine gods.

Here we go again...