My 2 year and 9 month old has recently developed sensory issues. He runs anytime there is a loud noise. Freaks out crying if he sees any display of negative expression, even seeing a sad face emoticon makes him run down the hall crying saying "I don't like that". This is making it hard for him to watch tv or read books with me. He frequently jumps up at the site of anything that might indicate someone is unhappy. He also has an issue with tags in his shirt now. I have had to go around cutting all of his tags out. Is this going to be a permanent thing due to him being gifted?