Hi EB.....and welcome to the best curry site on the web!
Like you, I also have high blood pressure and so lots of salt is just NOT allowed. Since I joined the site a few weeks ago, I have cooked lots of different curries using Cory Ander's recipes - Madras, Jalfreizi, Bhoona, Vindaloo - substituting 0.25 teaspoon of salt in each of the recipes. The results are still excellent and to my mind the quality of the dish hasn't suffered through the absence of salt.
Don't let it put you off enjoying a good curry!
al.