What happened to all my stuff?

[Stegosaurus TTV]

I had a bunch of stuff on my Nintendo switch account and now I log in my PC and I have to start over as a new player, like from scratch, excalibur right out of the first quest. Did I lose my account or stuff or something?

[dexter]

Set up cross save on warframe.com It will let you link your Nintendo account to a PC account. Make sure you read this page: https://www.warframe.com/news/cross-platform-save and double check you have your primary account set to the one with the most progress.

[Blaze]

If you didn't link or merge then your playing on a new account and not on your old account.
You'll want to log into the Warframe website and go thru the linking process and make sure your switch account is your primary account. Then when you log in again it should be fixed.