It’s niggling sometimes panicky fear response we many stroke survivors have had to deal with. Using Mindfullness methods and other psyche/physiological techniques can help get through the fear. I find practicing VKD (Visual/Kinaesthetic Dissociation) useful, I have written a post on it here. You can also start noticing the pattern of your thought, it comes into your mind, nothing happens, you don’t have a secondary stroke, and then move on to the next thought. This disarms the thought. Another technique I like to use is to think about what is going on like a scientist examining something, you take on the role of scientist and pick apart the feelings and emotions, this can also remove the emotion from the equation.
Along with relaxation and mediative techniques, this can all achieve a beneficial ways of dealing with the fear. I was checked for sticky blood conditions, do you have a condition that causes sticky blood? Anti-platelet meds are the first line of treatment.