Shadow Ban? I went from 500-1300 views to zero in 1 day..

cause that name is goofy

That's...pretty standard for tiktok.

One of my videos got 5k, then another 1k, then basically none after lol.

You really don't have any dedicated following to be judging your content based off numbers yet. I think ANY random uploader can hit those numbers without any effort. So don't be surprised when tons of videos get no traction or very little traction. That's normal when you have legitimately no audience yet.

And if your asking about being shadow banned, what did you do? Most people don't jump to that conclusion unless they know theres a chance something broke ToS/rules somewhere.