i would let her out as much as possible in a chin safe area, like the bathroom. grab a magazine or book or something and sit in there with her for 20-30 minutes a few times a day.
i dont know if you need to handfeed her every hour, 2 or 3 times a day is fine.
in reading back the only problem that i can understand is that she didnt eat many pellets on or two days. i am not a vet or expert or anything but it doesnt seem there is anything really wrong with her. i think you may be a newer owner who is just overly cautious. most of us have been there. when i first got my first chin, i knew nothing and took him to an emergency vet because he has soft poop one day. on the way home while making sure he was okay, i hit the car in front of me, so that day cost A LOT of money.
knowing what i know know, i would weigh her every other day. weigh her food every day because sometimes they only eat 1/2 the pellet & toss it down. offer unlimted timothy and minimal alfalfa hay. keep a few different bowls in different area of her cage to promote the foraging instinct and keep light on the treats. to encourage her to eat the pellets, i would put a small pinch of about 5 or 6 oats in her food and each day lower it down. i tried that with one of my rescues and it worked.
keep an eye on poop & urine, and try to do belly massage and extra playtime. keep up on the gas drops. 1 full cc with each feeding. but encourage her to eat pellets.
if she was in any level of gi stasis, it does take time to get them back to normal, especially with handfeeding.
she may be laying on her side more because you are taking her out more.
if you are not comfortable with all this AND you have a good qualified vet, than take her. just make sure you vet knows chins. ultimately, you know your chin best, so you have to make the right decision for her healthcare.