Are you absolutely sure these are allergies or are you anxious? Your symptoms sound like you are having anxiety attacks.
Did your lips, mouth, ears, or fingers start to get tingly when you felt that your breath was suppressed?
The Bactrim most likely didn't start making you allergic to those others meds. There are a few different classes of antibiotics that you have been on. I would recommend that you do stay away from the Augmentin if it caused you to have severe diarrhea. Keep that listed as an allergy in your medical records.