I have an almost 14 month old unaltered yellow male who has suddenly become very fearful of meeting new people and is skittish in certain new environments. He has always loved meeting people and has always been very outgoing, but now seems scared and barks when he first meets new people. Wondering if it’s a fear phase, part of adolescence or what is going on. Not sure how to handle it. He has been doing obedience since he was a young pup and has been well socialized since bringing him home at 8 weeks. Any input would be great! Thank you!