She might just actually have a massive head. I once worked with a woman whose head was WAY out of proportion with the rest of her body. Whenever she got up from her desk, I would watch because I was convinced one day she was just gonna teeter over due to her massively oversized head compared to her body. I used to think she was pretty until I noticed that disparity and from then on, I was just creeped out. I've never met anyone since who had such a mismatch in head vs body size before or since and it's really stuck with me over the years.