Yes, I am laughing because that's not a silly question to me because I thought the same thing, lol. I checked the refrigerator and even checked out the family inventory as well. My only other thought was if it could have anything to do with the potion to become a ghost for a day experiment. My Sim had used the potion a couple of times. I don't know exactly when the flowers disappeared though because I wasn't paying that close attention to my inventory items. I was going to give a flower to a special Sim friend and that is when I discovered they were missing. You know, while I am typing this other thoughts come to mind like, I sold stuff at the store and put things up for sell at the consignment shop. I wonder if I accidentally lost them that way? Oh geez... I guess it's just time to let it go and move on.
What are my chances that I will get more seeds to plant for them? I have visited the mausoleum and explored the catacombs several times and have been fishing as well hoping to get a mysterious box with a flower in it, but no luck so far. I hope my Sim doesn't meet up with any accidents and dies... that would really stink. I know I could always go back to a previous saves, but I would lose a lot of progress.
Thanks for the responses, I really appreciate them!