babies eating processed honey

Hi everyone! My sister just fed my 11 month old processed store-bought honey. It was about a tablespoon mixed in a 1/3 cup of Greek yogurt. He ate maybe 5-6 bites and I know to babies under a year it can be very harmful and cause infant botulism. He is acting totally normal. I read it takes several hours to days or even a month for symptoms to surface. I just don't know if I should be worried since he will be 1 in literally 7 days on February 2nd or take him to the pediatrician immediately. I've been looking for any signs like constipation or muscle weakness or trouble breathing but he is totally fine right now. I know it's somewhat rare but I've researched it all day and I'm kinda freaking out. Please help!