not parent but as someone with temporal lobe epilepsy, in addition to what parent describes, difficulty recalling words is definitely something i experience. Probably the most annoying thing that i have had to learn to deal with is people trying to fill in or guess what word i am trying to say while i pause. The hippocampus is located in the temporal lobe and is heavily involved in the processing and storage of short-term memory as well as retrieval of long-term memory, so it makes sense that if the hippocampus is a bit fried from seizures it would manifest as memory-related cognitive issues.