Is dizziness normal during a severe asthma attack?

Maybe: During a severe asthma attack many people will feel light headed, especially if they are hyperventilating. If your oxygen levels drop during the attack dizziness is also common.

Possible, yes. : Normal, no. Dizziness in that setting typically indicates either poor cardiac output from increased intrathoracic pressure or a low oxygen level. Both are exceedingly dangerous. Dizziness in the setting of an asthma attack is a worrisome sign and needs immediate evaluation.