Hi jeannie,
What did the PD say Gwen had? Danica also had high fever that yoyoed some time back and the PD said she had Roseola. Read this for more information:
http://kidshealth.org/parent/infections/skin/roseola.html. If Gwen has this, then you will have to wait out the fever. Keep sponging her forehead, neck, armpits, private parts and behind the knees with ice water and wipe dry immediately. It helps to bring the fever down very quickly. Make sure the windows in the room are closed, no air con or fan during sponging. Wear loose clothing and only cover if she shivers. Let her drink plenty of water and just cuddle her cause she is not feeling well.
RE : knocks
Now that Danica is mobile, she is queen of ba lo kus.
She knows how to get down from high places then ya ya papaya and did not take care and fell face down onto the floor from my platform bed, wailed like nobody's business.

Even though I heart pain but also find it very comical.
She crawl to the door and try to stand up, lost her balance and kok her head and, again, wailed loudly.
She open the drawer with 1 hand, stick her hand inside and her other hand closed it and, again, wailed loudly.
She standing at the coffee table and suddenly looked down, koked her head on the coffee table and wailed.
She has like 3 bruises on her forehead from koking her head on her cot railings.
I seriously think she is trying to "train" me into not taking her knocks and falls too seriously. Either that or she is learning 铁头功.
