Firstly, I am sorry you had to go through that and so glad you are okay!
My daughters were in Australia for a month and they went to the beach, they were all excited as it was their first time in an ocean. We go to the beach here every summer but it is part of the Great Lakes, not an Ocean. There were having fun, and then my eldest daughter started having anaphylactic issues, and could not figure out why. They went to a medical clinic that was like right there basically they said, and the people said the health insurance they bought for the trip was only good at the hospital and it would be a minimum $200 up front for her to see a doctor, so the nurse talked to her and advised her to go to the pharmacy. They sold her a very high dose of an allergy pill that is prescription strength as she was not in good shape, and having a bad attack, they monitored her and sold her more of it, she was told to keep taking them for a few days. She had her EPI pen with her, I told her she should have taken it and then gone to the Emergency but she was concerned about the paying up front part, etc. and didn’t. Thankfully she was okay but they figured she must have swollen some fish eggs or fish product of some sort when she inadvertently swallowed some of the water when a wave hit. She has severe shellfish allergies.
I will warn her about this though; as I know she does eat fish that I cook, and tuna at times! This could happen to her, and she has had to go to the hospital in an ambulance in the past from going into anaphylactic shock; when she was a teenager, and we were panicked.
Thankfully that pharmacist was very kind and helpful and provided her with what she needed but it was scary for her and her 21 year old sister with her. They told me afterwards on Facebook facetime, and I was so glad she was okay. I am certainly going to tell her to be careful of Tuna now.
I am so glad that you are okay, but it is very scary. Maybe you should get an EPI pen? My Sarah is also very allergic to all Nuts, Peanut Butter, and peanuts, and oddly enough, Cinnamon (which is a more rare allergy). She also has drug allergies; she is allergic to antibiotics, including all forms of Penicillin and Sulfa. We had to get herbal remedies for her when she would get infections or just wait them out.