Yep, probably what was going on. Keep that pill bottle locked up or hidden.
I just recently started to doubt what she was saying after one night she lied to me saying she lost one of her chewable Tylenol, so I would give her another, because she thinks they taste good. So then I started thinking maybe she just wants the medicine.
So I told her that she couldn't be taking pain medicine all the time because over using it can cause other health problems. She seemed worried and decided the headache wasn't that bad and she didn't need medicine.
Every once in a while she'll get headaches during the day. But it generally happens right after she lays down, within a min. Or two.
First off, if she isn't doing anything else that seems attention-seeking, I'd believe her that she really is having headaches.
Does it happen after she lies down, indicating a possible problem with the pillow or mattress, or her position pressing on an artery and reducing her oxygen level?
Does it happen before she goes to bed, indicating maybe a lighting problem in the house?
If you google "headaches at bedtime". you might be surprised at how common a complaint this is.