Glad you found our team! From what I've heard of diverticulitis, that's supposed to be a higher fiber diet (forgive me if I'm wrong), but GP is a low fiber diet, so add into that your food sensitivities and I'm not surprised that you have disordered eating. I've had disordered eating also, due to severe depression, anxiety, and abuse along with a not well-functioning digestive system since I was a young child. Unfortunately, disordered eating such as anorexia nervosa and bulimia can sometimes cause gastroparesis, so anything you can do to eat as best you can now will at least minimize the chances of your gastroparesis getting worse.
Keep working with your therapist to deal with the mental aspects of your physical issues as well as your doctor for whatever treatments are available for your conditions. Seeing a dietician will also be helpful, as well as making sure you've come up with a list of foods that work for you.
As for how to handle eating 6 meals a day (I've been known to have up to 10) is to redefine what a 'meal' is. A meal for us needs to be small - often a kid's portion at a restaurant is even too big. So a 'meal' is also a snack. If you have a job where you work at a desk and can eat while working that's ideal, otherwise you need to ensure you can take breaks. Eat a small breakfast, have a snack, eat a small lunch, have a snack, eat a small-medium dinner, eat a small dessert/snack. That's 6 meals. If you have 300 calories per meal and 200 calories per snack, that's 1500 calories in a day. If you find yourself too full to eat your snacks, then eat less at your meals. This is a structured form of 'grazing' and not only will it help keep your blood sugar more stable, but it will allow your digestive system to keep processing slowly all day instead of working so hard after each meal and trying to rest right before it gets stuffed full again. Unfortunately, eating like this seems unnatural because you'll never feel totally full, but that's a good thing considering the early satiety.
Another good tip is to relearn how to drink liquids. Most people drink water/milk/soda/liquids while eating, but we should NOT. Instead, drink your daily water and other liquids between meals and stop drinking for 30 minutes before eating solid food. Only sip water while eating to help you swallow, then after you've finished eating you can go back to drinking. If you drink while eating the food and water mixes and you get fuller faster and takes longer to digest.
To carry around your snacks, look for foods that don't need to be kept cold or cooked well. This is a good idea anyways, as we should not be eating or drinking cold food whenever possible. Just like putting ice on a bruise, cold food will numb the nerves and slow the blood flow, which makes GP worse. If you can handle some granola bars (remember low fat and low fiber), some breakfast on-the-go, or dry cereal can be easy to carry. Fruit leather is also often a good thing to try and doesn't need to be kept cold. Single serving containers of applesauce don't have to be kept cold. When you have some time to spare, just wander around your local grocery store to help give you ideas.
For remembering, it is a process to learn how to eat so often during the day, especially when many others around you aren't eating. You could set an alarm to remind you. If you have certain tasks you must do during the day then you can tie in eating to those tasks. As I said earlier, you could plan to have a snack when you have breaks at work, or if you work at a desk you can put your snacks out on your desk each morning so you see them during the day and remember to take them. If you listen to the radio then whenever a certain show comes on that could be your reminder. Anything you do at the same time every day can be a reminder for you to eat. Or, if nothing else, just get yourself into a habit of looking at the clock more often.
I hope this gives you a few ideas to work with. Please let me know if there's more I can do for you.
One last thing, it's not a big deal but it's something to remember. Anorexia is the act of not eating, while anorexia nervosa is the mental health disorder that leads to no eating. Your medical records will have anorexia written in them in conjunction with the gastroparesis, as a symptom is not wanting to eat or not being able to eat. I had anorexia nervosa as a teenager as well, but part of it did stem from the severe stress I was under causing my body to reject all want for food, which became a mental health disorder when I decided I would just stop eating because I was 'better' that way. My doctors refused to believe I had an eating disorder and it took 29 years of suffering with mild GP symptoms and months of having no ability to eat before they diagnosed the GP. When I see 'anorexia' in my medical files I freak for a moment thinking they don't believe me again, but I remind myself that it is the symptom of GP.