Not an Emergency, but if you have a minute I'd enjoy the knowledge...

Hey everyone! One of my RIR Hens started laying sunday () and I actually caught her in the act last night! (double ) But it seemed kind of hard on her, she was panting pretty heavily and when she got done she gobbled down two peaches I tossed in for them by herself, then a TON of laying pellets and then drank a heck ton of water. And finally she kind of laid down on her side in the cool dirt in their run and just laid there and panted. I was wondering if there is anything I can do to make her life easier? She is still a little young, only about 20 weeks, and it's been pretty beastly hot here in NEPA. I'm just worried about her as she seems a little lethargic today, and it's coming time for her to lay again (she's been starting between 430 and 5pm). Any advice would be GREATLY appreciated! Thanks so much, hope ya'll are having a great day!