My 4 year old's teacher told me my son is too sensitive and I should have it "looked into"

I had a parent teacher meeting a few weeks ago with my son's two Montessori teachers. One thing they touched on was how sensitive he is and how hard he takes things when he can't do something perfectly right away. This has always been his temperament. He tends to give up before really trying and freaks out when he can't say, do up his zipper. It's really frustrating for him and he starts crying and getting really upset. Yesterday I picked him up from school and she mentioned again how he got upset with his ski pants. She said it's very real to him and I might want to get it checked out. She sounded so irritated when she said it and I left feeling really upset (the Apple doesn't fall far from the tree). She's been a teacher for a long time, is it really that unique that I need to get him checked out? I feel like he's just a really sensitive kid and I need to just accept him the way he is and offer my help when he needs it. I'm not sure what I should say or do regarding this teacher or leave it alone. Note that I am naturally a fussy mom that wants to jump in and save but I've learned to step back and let him try to do things first before stepping in. via /r/Parenting https://ift.tt/2TfS4iP