Dana, I have a same reaction to spicy food.
Following are suggestions for high calorie supplements:
"TwoCal HN, a product from Abbott Laboratories, contains a very high caloric value. Each 8 ounce can contains 475 calories with a well balanced mix of protein, carbohydrate and fat. There is very little fiber (which provides no real nutrition) so almost all of it can be effectively used towards weight gain. TwoCal is gluten- and lactose-free and can usually be covered by insurance. Details on this and other supplements can be found at www.abbottnutrition.com"
"Carnation Instant Breakfast Lactose Free (VHC) This product of Nestle Nutrition is extremely high in calories (560 per 8.2 ounce can), is a well balanced mix of 16% protein, 34% carbohydrate and 50% fat."
Good luck, Erica