Firstly, are live mealworms likely to make her ill or possibly be lethal?
Mealworms aren't lethal to hedgies. In fact, many enjoy their mealies. There is some caution around superworms - they're bigger and can bite your hedgie. You can certainly feed your hedgie superworms, but make sure to cut of the superworm's head first.
Mealworms, in moderation, shouldn't make your hedgie ill. Of course, any new food can upset a delicate hedgie belly... whether it's mealies, new kibble, or what. So start small.
How often should she be bathed? (only had one so far but absolutely loved it)
Hedgies' skin tends to be on the dry side, so only bathe hedgie when she's made a mess of herself. You can use oatmeal (put in sock in the water) to help ease the dryness. I think my Satin ended up with a bath about once every month or three. And Tex maybe three times so far in his entire life.
Their feet, however, are a different story. Both need(ed) almost daily footbaths (like 1cm of plain warm water) to help get the poop off from running in their wheels all night long.
I have tried lots of different treats - strawberries, seedless grapes - carrots - you can pretty much go on for ever, but she won't touch them. Doesn't she need the variety?
Treats are great. It can help to cut them into small pieces. Choose one and present it to your hedgie for several nights in a row. If it's still rejected, try another food the next week for several nights in a row. And you don't have to give up on a "reject" - try the same thing maybe a month or two later. Sometimes, it takes awhile for them to understand "hey, this is food... and I like it!"
Regarding the grapes... I think I recall reading that grapes weren't advised... But, please, someone else chime in on this one!
Favorites for mine have been butternut squash, sweet potato, peas, and carrots - all in the baby food version. Tex has also enjoyed real bananas and hard boiled egg - the white part after it is cooled.
Even so, if she decides never to eat anything other than her kibble, she'll be okay as long as it's a high quality kibble/mix of kibbles; ie, don't stress out over her not eating her fruits and veggies
The questions go on but cananyone help with these please?
Keep on asking