Traumatised by the teacher who is head of sports at school

About 8 years ago I was in grade 6 and we had our yearly event for sports where we would play a specific sport with other school. the whole year level would practice before actually playing.
Now at the time it was winter which was probably a bad season to be playing sports that are outside which never made sense to me.

Anyways about a week before this I was actually sick and was diagnosed by the doctor that I had pneumonia. I did go to school, but I needed to be indoors at all times during lunch and recess . So I would sit by myself, sometimes with my friends in the office room or the library so that I wouldn’t risk it becoming worse.

Now the day of practice we needed to go outside but I knew that I shouldn’t have been outside but my teacher, said see how I go and if I need to be inside to just go there.

Now the head of the sports department came into our class to tell us he is ready for us to come out.
As we were walking to the big oval, I realised I forgot my jacket and thought I should grab it. I went up to my teacher, with another one of my friends and they said we can go.
As we were walking out, head of sports (Mr Davy) called our names out. And let me tell you he wasn’t just calling us out as though he was telling his own kids off as though they were in massive trouble.
Anyways we turned around, and I was scared as I usually hated getting told off, and he aggressively from afar pointed at us and said “COME HERE NOW” (to almost which I would describe it as ms trenchbull in mantilla calling one of the students about there pigtails) we came and he aggressively asked what were we doing. We told him we were getting our jackets because we forgot and it was cold.

I was fast walking almost running to the office sitting there by myself with noting trying to not cry and pretend I was occupied with the magazines on the table, as I brought noting. in the office one of the other teachers came whitch she had already known about me having to be inside and she saw me. She sat down next to me and asked what was I doing here and if I was ok. And once she asked if was ok, instant tears came out due to the trauma MR DAVY had done to me. Mind you he never apologised.
Till this day I’m 19 and I struggle to talk to, males older than because of this. For example I don’t like male doctors and when doing driving lessons prefer and choose only females.

Is this reasonable or do I need to get over this as I’m overreacting because if how long it’s been ??