Recover iTunes library

Some background info: I use 2 iTunes accounts on my computer, a personal account and one for a business.

I was using one account, logged out and in to the other account, but it was still showing all of the songs/playlists for the original account I was viewing.

I did the SHIFT/Open iTunes option and selected another library and was able to pull up the library for the second account.

Now I have been trying to switch the library back to the first account and cannot. All versions of iTunes library in my folders only pull up the few songs for the second account. Please tell me I have not lost all the songs and playlists I have made for my business account! Any help is appreciated