First time experiencing going nonverbal...?

Im having a really weird experience right now and ive been mute for an hour. I have said ok twice today after the muteness started and that was uncomfortable for me. I am usually a very loud and lively person but after lunch i felt sad without a reason and then went mute. I talked to the counselor about it and it has to do with my aspergers/adhd and also i think im overwhelmed. I dont feel overwhelmed but i dont know what it feels like in the first place. Ive been mute for 2 hours and feel very introverted and quiet right now. This is so weird to me i dont even laugh with my voice when i find something funny. I hope this is permanent but i can still talk then. I love this because it feels like my adhd is gone but i also feel nothingness. I am more prone too sounds and lights now though. My brain doesnt feel like its at 1000 km per hour anymore though. Im thinking of making cards that say i am non verbal right now but am ok and not sad or stressed.