I would assume that’s most likely the problem. I love occurring FB every week to see your new recipes and to try them out & see how they effect me. The fourth ingredient says “2 tsp sugar” so in ADDITION to that ingredient, you’ll in all probability also wish to add one other 1 tablespoon sugar should you don’t add the 1 packet of stevia.
When your lungs are healthy, you retain a large respiration reserve. You may feel ‘out of breath’ after exercise, but you will not be ‘short of breath’. When you’ve reduced lung operate, you may use a big a part of your respiratory reserve. This could make you feel ‘out of breath’, which can be an unpleasant feeling, but it is not typically harmful.