Could be die-off and could be the spice you used. I would stop using the spice for a few days or a week to see if the thrush improves. I would then stop using the coconut oil for a few days to see the same thing. If it still exists, I would then start going through your food items to see if any of them are causing it.
All I know is that thrush will be cured long term with the diet and I had it for a large portion of my treatment. I had it pretty light.