Is Asthma Attack During Pregnancy A Cause For Concern?

Hi im 33weeks pregnant im asthmatic ,which has been fine through out my pregnancy but yesturday afternoon i felt like i was going faint ,i felt very breathless and shaky ,yet i eat very well and drink plenty of fluids,my stomach felt very bloated it was kinda felt like my baby was sitting up high laying on my lungs or something i was close to going to the hospital last night and i felt really hot too.