u/LegitimateOil2145

Hello fathers. I've recently been to my first confession in 20 years. The day of my confession a certain area of my life, that was likely to include sinful acts and thoughts, came to mind, but I brushed it over as unimportant and focused on the list of sins I already wrote. Two days after my confession that area of my life came to mind again and while pondering on it for a few minutes I came across several gravely disordered opinions and thoughts that I used to hold to. Given it would have been this easy to discover these sins is my confession invalid? I never intended to not confess to grave thoughts and I confessed tings that were far more embarrassing to me, however I have clearly been negligent in my examination of conscience. I will bring this up with my priest as soon as possible, but the thoughts are torturing me. Thank you in advance for any answers!