Anaphylaxis experience in Mumbai

Recently I had a very critical Anaphylaxis experience (severe and potentially life-threatening allergic reaction) in the span of 10-20 mins where in 30 min I was ICU in the middle of night. I was wondering whether there is a increase in these experience by the people residing in Mumbai because I heard recently about many people having to being rushed to ICU because of food allergies or some kind of reaction. **Describing the experience:**\- At around 10:30 PM I went for a walk downstairs inside the society, and within 10 mins I was feeling increase in my body temp and irritation on hands and head. I waited for 5 mins and went back to house to see and washing my hand, but when I saw myself I had hive formation all over the face and hand. My hands were completely covered with multiple bumps ( like mosquito bite ) on my face, neck and hand. Around 11 PM, my bp was low and was loosing consciousness, thanks to my neighbour they rushed me to the nearby hospital, and when they checked my bp was as low as 30 (that they could measure but mostly they said it was not measurable and it's too low ) and heat rate was 147 (max that they monitored). Had a choking sensation around my neck. After second consultation, I have been advised to take Allergy test after 15-20 days and carry medicine to reduce the effect on immediate basis and rush to hospital. This post is just to know whether many people have experienced these symptoms or something similar(hive formation, and skin irritation within mins). If yes, I would suggest to relax at the very moment you notice these symptoms because it can turn into life threatening. Just let me know if you have seen these symptoms recently.