Report New here - 7 YR old develops OCD - 5 days after flu mist in PANS / PANDAS (Lyme included) Posted October 30, 2013 I haven't read through all the posts, but you are NOT nuts! I have heard several anecdotal reports of the flumist vaccine causing PANS reactions. I guess it would fall under PANS other environmental triggers. This vaccine is nasty because it is a live vaccine, as I understand it. I am sorry you had to find this forum, but glad you did so quickly. Run, don't walk to get an appropriate assessment.