Yay! So, will Betty eat at all? I know you were talking about this in your original post on the other forum. Fancy Feast is very tempting to most cats. And some Gerber baby food meat. And please make sure you do feed her when hungry, except for what Wendy told you about NOT to feed before shot. (Vets normally say only feed 2x/day, but you will see on this forum most of us have figured out that is not the best recipe for keeping our cats BG steady). ALSO, so you know: diabetic cats do NOT utilize energy or calories well, so they do need to eat more than a healthy cat, because they are not using the nutrients effectively. When Betty gets regulated, you will see her eating get more normal in terms of amount.
I give Pearl lots of mini meals during the day - a lot of us do it that way. Helps to control the BG numbers and keep a handle on what is going on. I do think you should be testing at random times, yes. Outside the 4-6 hour window, yes. You don't yet know when Betty will go low, you have to figure that out with testing. If you look at Pearl's spreadsheet, you will see that she NADIRs super early on in her cycle. But I wouldn't know that without my testing at random times, to build the data over time. You don't have to test obsessively like I did early on, but keep in mind you are trying to create a picture of what the patterns look like with your testing. For Betty, she has already had some GREEN numbers. When you start seeing green, you do want to keep up on your testing b/c you really need to know how low she is going and when.
ALSO! You mentioned vomit. Can you list in your signature what other conditions she has and medications? When you get time

FD goes along with other issues a lot, and those issues may complicate getting her BG under control. It helps everyone to know what is going on. Look at my signature - you know all about Pearl's issues after reading. That is what you want to do if you have conditions to list.
Here is the link to your previous post, for continuity. When you write your post tomorrow, use your link for today's post. That way, all of your posts stay together forever.
https://felinediabetes.com/FDMB/threads/new-member-sandy-mom-and-betty.248017/#post-2798642