Don't give up...you've got this! We all have our bad days, the important thing is to not let it own you. Just make today a better day :-) One thing that has worked for me is drinking a TON of water. I just upped to my TDEE this week for the reset and am now eating 2400 cals a day...did okay calorie wise the first few days, but was over on fat and under on protein. Last night I was a good amount over on calories and fat (just got really hungry after my workout). But, I drink about 12 cups (96oz) of water a day and that really seems to help combat the bloated/puffy feeling. Maybe try upping your water? It may help a bit. Also, if it will help you feel a little better by sneaking in a little exercise today, I don't think that's a bad thing...just do something light (maybe a walk or short jog?).

Could you change up your overnight oats recipe and mix in protein powder somehow? A lot of the things in the oats already have protein, but that might help frontload your day with protein so you're not trying to make up for it the rest of the day. I think increasing your protein intake should also help keep your blood sugar in check. I almost have to have a protein shake or two to meet my macros. What other things do you eat throughout the day? Perhaps we could give suggestions for substitutes if there's something that's keeping your carbs higher. My diary is open and I usually do a decent job with macros, so feel free to check it out.

Im going to mirror Lucia's suggestion of better meal planning...
If you find yourself diving into the poor-choices of carbohydrates during that 'fiendish takeover', you will find the problem lies within what you had consumed that day.. there was an imbalance somewhere, not enough of this vs that, etc.

One of the things that is a definite, and this is what we inform our patients of here at work: be very careful even with fruits. Not all fruits are the same. Some are just as bad as the poor carb-ridden foods that most cereals are, processed foods are...

I dont dare eat oatmeal, it sends an automatic surge of insulin and my pancreas has a very hard time 'shutting off'... We have patients who are just like myself - matter of fact a test group that I helped to run and participate in from a Dermatological angle, we found that the first meal of the day greatly influenced our eating-related behaviors for the remainder of that day. The group that had a heavier carb-load stemming from the bread/grains/cereals group actually was more hungrier, more irritable, felt the uncontrollable troll-of-treats take over and just had a hard time stopping from the binging they did on foods known for poor-carbohydrates. They didnt have enough of protein or fat at all.

Opt for carbohydrates found in vegetables in your morning breakfast. It doesnt have to be an omelet every day with tons of rabbit food... you could easily have a wild-green salad, a few strawberries, chopped almonds or walnuts in place of croutons for the need to 'crunch' on something, add plenty of good protein: fresh tuna, roasted chicken, salmon, steak tips - whatever you want. Dont be afraid to have a full-fat dressing. I often make a Lemon-Dill vinaigrette on-the-fly that goes SOOOOOO WELL with a nice Greek-style Feta-chicken salad. So good!!!!

The American Association of Clinical Endocrinologists refer to the belief that through blood work, previous history, current history helps them to determine what is the right intake of dietary carbohydrate intake per meal. Perhaps for you, your body (from the sound of things) may be very carb-sensitive thus the hunger-monger situation comes around.

Im on a 120g total carbohydrate limit, but they must be 90% vegetables, 5% fruits, 5% low-carb option bread types. I stick to this like a fly to...... well, you know what Im talking about! LOL!!!! I can easily go without the Joseph's low-carb bread, it doesnt bring that hunger-attack on if I dont have it in my daily intake.

Just my two cents

I was speaking for myself.
Ill be sure not to contribute anything anymore where you seem to come across as ungrateful....

EDIT: I will point out though, you failed to mention anything about an insulin pump previously...