what could be wrong?

Nylah • TTC #1 with my husband❤️ We are now pregnant!!!! I`m so incredibly happy!!!
Our DD seems to be a bit more cranky than usual even more so than her twin. She doesn't have a temp- she's always around 98.4 (so dr doesn't seem concerned) but her hands are slightly clammy. Central AC is on at 70/71 degrees. She'd drooling a bit more than usual but nothing else has changed. They both cry when they wake up from a nap hungry but the past few days of playtime she's cranky. The only thing that she really enjoys is her swing. Anyone go thru this before?