I was having immunotheraphy shots when one day i had an allergic reaction to one of them (bee venom shots). I was rushed to the hospital, and had epinephrin and bendryl shot into me. I was diagnosed later as having a mild-not immediate life threatening form of Anaphylaxis. I was released from the hospital 8 hours later. Ever since then i keep having random increases in heart rate (going up until about 160 BPM) and a very weird sense of breathing. ONce i was even re-rushed to the hospital (this was 2 weeks after the shot and the anaphylaxis) because my parents and the school nurse thought i was having ANOTHER allergic reaction even though i had not been given a shot and did not get stung by a bee. When the EMT's came they took my blood pressure and my HR and said it was at about 156 BPM. Sometimes i feel a shortness in breath, and i'm a pretty athletic 18 year old. Some doctors say its Anxiety, but i have never had problems with Anxiety attacks or panic disorder in my life.