Main Article on Hyperventilation Question: What were the causes of your hyperventilation? Submit Your Comment Comment from: PISCES, 55-64 Female (Patient) Published: May 12 I thought that I was having a stroke. I started to get numbness in my toes on one foot than the other. I also started to get numbness around my mouth. I was told afterwards at the hospital this was due to a side effect of my medication. I was also handed some information about hyperventilation. Comment from: Maz, 65-74 Female (Patient) Published: June 21 I suffer from hyperventilation with my anxiety. Now I am getting wheezy on breathing, I wonder if this is part of it. Medically reveiewed by James E. Gerace, MD; American Board of Internal Medicine with subspecialty in Pulmonary Disease REFERENCE: MedscapeReference. Hyperventilation Syndrome.