Like you, my poultry allergy started at 19 aswell! I am now 24. Mine also started with the BAD cramps and fast heart rate and a bit of trouble breathing. After the first time I ended up in the ER I was told to go to an allergist ASAP. I did, and was diagnoised with fowl and fish anaphylaxis. Your symptoms sound like they are getting a bit severe. Please go see an allergist. Also start keeping a food diary.. write down EVERYTHING you eat, drink, put in your mouth... write down the times and if you have a reaction right down ALL your symptoms, what time it started etc.
Also, if you feel a reaction is getting to out of hand, ex. not able to breathe right, swelling etc. do not hesitate to go to the ER!!
But, make sure you find an allergist!! and if they never heard of a chicken allergy, find another one!! The allergist should be able to tell you if it is a true allergy or an intolerance!