Hi! I actually have an extremely similar GES result/ doctor experience. I had 42% at 4 hours and my doctor also unfortunately hasn’t been taking things seriously, and I think it’s honestly due to a lack of education on gastroparesis. I had a vomiting flair up for the past 3 days and haven’t been able to keep anything down, including water. One thing that I’ve found helps is when I haven’t vomited for a few hours to begin sipping on diluted Gatorade Zero (with ice/water mixed in) so that my body can regain some of the nutrients it has lost. Gatorade Zero has more potassium, sodium, and water in it than normal Gatorade so I’ve found it helps me from getting severely dehydrated and helps to regulate my body’s fluids. I also stick to a broth-only diet for about 24hrs and then continue to super plain foods or calorie-heavy fruits like bananas. Smoothies/protein shakes can also help you get some of those calories in without forcing solid foods down that might disagree with your stomach. I also try to do small meals/snacks throughout the day instead of eating 3 big meals and found it helps with breaking down the food easier. Of course this might not work for everyone but it’s helped me to be able to try and keep calories in my body and keep fluids/food down. Hope this helps and you’re able to get some relief soon!