I was very confused at lunch. It was Tuesday, but I am in Uruguay, so I didn’t know exactly what the rules for fasting and abstainance are. Meat had been served for lunch. I got worried, and thought that I was commting mortal sin because I hadn’t really looked into see what the rules were. I ate the meat, after a very brief review of this matter online. I ate, thinking that my mind was being annoyed with scrupulosity. I still felt however that I had consented to possibly commiting mortal sin, because I didn’t feel 100% sure that it wasn’t grave matter. Afterwards, I found out that the decision to not permit meat and other foods are supposed to be up to the local bishops only during certain days, which I don’t think apply to that day. I ate dinner later with meat, and I wasn’t bothered in the same way. However, maybe this experience can clarify what the question relates to.