Issues with People Running Summer Programs

Hi everyone! I'll just jump right into it. I am 17 and have had 2 documented grand mal seizures, which started at the age of 15. However, I have had other types of seizures since I was about 10. I wasn't on medication until I had the first grand mal at 15 because I didn't know I had epilepsy, but that's another story. Anyways, I was on Keppra for two years, and was taken off in March of this year. In the past week, I have been put on Zonisamide because of a recent grand mal. Between the time I was taken off of Keppra and put on Zonisamide, I applied for a trip to Australia, and I am going. They asked about medications, but I wasn't on any at the time so I didn't say anything. I informed the people running the program about the Zonisamide, and now they are mad at me and my family for not saying anything before even though I did not have a medication to put down at the time. They were rather hostile. They want to have a big meeting with me and my family now even though we have assured them that everything is under control, and my doctor agrees that everything is fine (we told him about the trip). I have had similar experiences in past summer programs. One time, the lady running a ballet intensive wanted me to report to a chaperone every time I ahd an aura/petit mal/we-don't-know-what-to-call-them. This is nearly impossible because sometimes I have 15/day and they blur together. Could anyone explain to me why people like this are always so bent out of shape about epilepsy? Is it a legal thing? A stigma? Should I just not say anything from here on out? Thank you!