Catnip is discolored. Is it Thrips?

Hi friends,

I've been searching around Reddit trying to figure out what's going on with my catnip plant but I can't find a solid answer. I've had this catnip plant for about 2 years and she blooms flowers, but in the last 6 months she's developed some bleachy spots. There's no visible pests and the plantlives in a container indoors. Any idea what this is and how to treat it? Also, if it safe to atill dry these leaves and give them to my cat?

Thanks!