Maybe skip the SF creamers, it could be that the artificial sweeteners in them don't agree with you. I use soy creamer (plain), but you might try fat free half and half.

I drink one cup of regular coffee in the morning with one teaspoon (official measuring spoon) of sugar and one tablespoon of regular half-half. I gave up artificial sweeteners/flavors a couple years ago and stopped getting headaches. Now anything with those in it tastes terrible to me and makes me feel queasy. About the half-half, I had to add some fat back into my diet (after talking to my doctor) because my skin was extremely dry and my digestive system needed . . . well . . . it needed lubing! I get about a tablespoon of healthy oil a day and eat some avocado 3x week. Makes a big difference!

I use almond milk and Splenda. The creamer doesn't sit as well. I drink far more than I should!

I use the Fairlife fat free milk and use 4 oz. to 4 oz. of coffee with Splenda. I steam and froth the milk and make a latte. It's divine!! I kill two birds with one stone and get double the protein from the Fairlife. Before surgery I was a black coffee drinker, but I can't do that anymore.

I discovered it wasn't the sweetener, it was the way I was brewing it. Brewed coffee kills my stomach, but I can drink French press all day long. For cream, I use Fairlife 2% and a touch of Splenda to sweeten.