Lightheaded from Strep Throat

Patient: I have recently been diagnosed with strep throat. I have been on antibiotics for 3 days. Today, i woke and felt worst than i have been. I am having a hard time breathing and become very light headed when i walk. I was just wondering if this is a normal side effect from strep throat. I am a 19 year old female in overall good health and usually do not struggle with any other health issues.

Symptoms: Dizzy, lightheaded, sore throat, restricted airways, mucus build up.