Been there, done that. Glad you had an easy fix.
It was talking to you! In case you haven't tried it yet, Aurifil thread is so much less LINTY. I almost hate going to use other thread now, but have much thread in other brands to use up.
I delint my machine but it must be desperate for oil poor thing. Glad you got it fixed quickly and she's now purring.
Chat away - I enjoy reading comments and will respond here or by email :)