Strange Panel Interview - Second guessing my interview skills.

Had a strange panel interview last week and now it’s made me second guess my interview skills. End of January I applied for a unit manager position at a large city in TX. Job closes and I don’t hear back for two months. Got a phone call two weeks ago to set up an in person interview. I pride myself on my people skills, and the ability to talk to anyone with confidence and a mutual respect. I’m especially confident speaking about my job skills. I currently have over ten years experience in my current field and I’m good at what I do. New position is adjacent to my current role, but not in the same field, but is directly related to my degree. Sit down for the interview and it’s there’s five people on the panel. Make the introductions and pleasantries and then we started. The HR admin at the end of the tables asks all the questions vs the panel. Panel is typing away documenting my answers. Strange part is there’s almost no interaction between the panel and myself. A few questions in, I flub an answer, take a drink of water and recover. I mention I’m nervous and was told by a female panel member, “don’t worry we don’t bite on Thursdays.” We laugh it off and move on. From that point on, I have direct interaction with that person and she asks follow ups to my answers. I feel the second half of the interview went way better than the first after the back and forth. What threw me off is the two guys sitting across the table from me staring and not saying a word and just typing through the whole interview. I would finish an answer and the HR person would get a nod from the guy in first in front of me to move to the next question. I’m supposed to hear back by tomorrow, but I don’t expect an offer to come from the interview. My second guessing is really messing with me over my performance as I don’t think I was able to effectively communicate at my normal level. Did I space out on an answer, no, but I was visibly nervous and that’s not usually something I experience in my current field. Just wanted to get this off my chest…