Food and insect bite allergy testing

I'm specifically looking for the kind of test where they put things on your skin and have you eat foods you might be allergic to in a controlled environment.

I had my first allergic reaction in my life. My throat almost swelled shut such that I had trouble breathing. I had blood tests done, but I've heard they are nowhere near as accurate as these other types of tests. I got slightly high readings on shrimp and milk, but have consumed shrimp occasionally and dairy products regularly after my reaction and before my test; absolutely nothing happened to me. From that day, it could have been a number of foods, or an insect bite.

Does anyone know of any allergy clinic that can perform these tests? Preferably a clinic where they speak at least conversational English. Somewhere in southern Tokyo, Kawasaki or even Yokohama if there's nothing else. I need to know what caused that reaction.

Send me a direct message. I know some allergy, dermatology and otorhinolaryngology clinic which contains personal profile.

There are some unusual food allergies out there.

Rare and Unusual Food Allergies.
http://www.todaysdietitian.com/newarchives/090313p54.shtml

If nothing shows up on the allergy tests, it may have been an insect bite or you may even have had a bad panic attack.

if you sleep in air conditioned room (especially, the wind comes to your face), your throat will often swell.