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Hi there! On one hand, keep in mind that Search Console never showed us exactly ALL backlinks found. As long as you are certain and other tools like Moz link explorer, Ahrefs or Magestic find them you are good to go. Did you know that past 1/8 there was a massive algorithm update? Your site could have been hit. Here four of the best articles about that. Grab a cup of coffee and read them so as to understand whether you were hit. Analysis and Findings From The August 1, 2018 Google Algorithm Update – A Massive Core Ranking Update - GSQi Google's August 1st Core Update: Week 1 - Moz Blog Google’s August algorithm update strengthens as roll-out continues - Sistrix The August 1, 2018 Google Update strongly affected YMYL sites - Marie Haynes Hope it helps. Best luck. GR