That's strange, I only ask because Kushie Kush is a substitute for Big Bud. You don't use them side by side unless you're using half and half. You're probably getting an unbalanced amount of nutrients to your plant. Look at what both contain, pretty much the same thing, just different amounts of each. They're both bloom enhancers.
Kushie Kush is specifally designed for kush plants. You're not growing kush. Your results are looking good, I just don't want this to develop into a ploblem for you. The excess P and K could easily develop into a problem, if not already one.