TIFU by making my coworkers think I was eating my deceased cat.

A bit backstory: I've been living in an english speaking country since I was 10, my accent is 95% gone and people who meet me generally don't realize I'm not a native speaker but once in a while I'll misprounce something or use a word wrong. Onto the FU.
My cat died yesterday. She was my baby and I miss her very much and I can barely function without randomly bursting into tears. I took off work yesterday so I could grieve and bury jer in my in my yard under the bench we used to sit on and watch the birds in the summers. I thought she'd like that. My sister stopped by to console me and brought me a homemade meal. Despite it being delicious I could barely eat and saved it for later. Today I had to go to work so I packed the rest of the dinner for lunch. When I came in my eyes were puffy from crying and people were asking me what happened and I explained about my cat. During lunch I was heating up my food and and a woman I work with asked me what I was having and I responded with "the remains from yesterday". She looked disgusted but I thought whatever maybe she doesn't like to eat food from a previous day. A few hours later I got called into HR and was told my colleagues would prefer I didn't eat house pets in the shared dining space. Wtf? I was so confused, then appalled, why would anyone think that??? I was going back to all the conversations I had that day and at no point did I say anything about eating pets. HR lady let me go but then a few hours later caled both me and the women who watched me heat up my lunch in. That's when it came out I said I was heating up "remains" when I meant "left-overs" and my coworker assumed that meant I cooked my cat and was eating it due to some mental breakdown I was having. FML. I do know what both words mean and that they're not interchangeable I just was't thinking clearly. Despite my explanation People are still giving me looks. TL;DR: I misused the word "remains" and now my coworkers think I ate my cat.