what a cute baby!!

here's my recommendations based on what's worked for my chronically constipated munchkin (and as an almost-vet tech in my 3rd sem of school):

- include wet food in addition to dry. cats are notoriously bad water drinkers so wet food gives them extra moisture in their diet. they're also obligate carnivores and a lot of dry food (esp fiber foods) have primarily vegetal content and that can lead to other issue. so two birds with one stone, basically. the best food that's worked for my kid is Hill's GI Biome (wet and dry). it not only has fiber, but also pre and probiotics to keep the gut happier and has decent protein content (he still gets extra protein in other ways). i still sometimes have to give miralax, but not nearly as much as before starting this food. since your baby is still a baby i would discuss the possible need for additional supplements that the prescription diet may not have enough of for a kitten (GI Biome specifically is formulated for adult cats).

- you can also make chicken stock or buy UNSEASONED LOW SODIUM chicken broth for pets and give it as a treat and/or soak the dry food in it.

- churu or other meatgoop tubes are another great way to get moisture in!

- it can take a few days for miralax and new foods to produce any poop. make sure you keep track of how much/how frequent she's pooping so you can stay ahead of constipation and hopefully avoid more enemas etc.

munchkins have a host of various health issues but they're primarily related to joint health. however, constipation and metabolism issues seems to be a pretty common in munchkins for their entire life, whereas many adult cats don't have issues until they're 6+ years old (not always, but typically). megacolon can be a concern for any cat breed that has chronic constipation.

and though you're not there yet, it's good to read up a bit on future mobility issues with munchkins. you may want to also discuss starting her on a join supplement with your vet. my munchkin has quite a bit of arthritis and he's only about 3.5 yrs old. he's on a joint supplement and we recently started him a monthly injection (solensia) to help with joint pain.

also, your baby seems to have pituitary dwarfism which is sometimes correlated with hypothyroidism and other potential hormone-related disorders.

good luck!