Chiquita has been great since about 6 weeks- she's gone to bed at 6:30/7pm and we haven't heard from her until at least 10pm (some nights she'd go longer, even right through). Since 12 weeks she's been sleeping through until about 6am or even later. Now, at 14 weeks, she's started waking again at 10pm and in the last few days, also at 3ish and early at 5 or 5:30 in the mornings, although she does sleep until about 7 if I bring her in with us. Tonight she has woken and asked for food three times since being put down, which I can't remember her doing since... well, I can't remember her doing it. Any ideas what might be going on?