Should you workout if your seriously hungry BEFORE?

I woke up from a nap, cleaned a little and waited for my boyfriend to get home from work so we could go to the gym. But I'm hungry after cleaning and I'm starting to feel nausea. Plus it doesn't help he has the heat on high while were driving. I really need to know if I should eat before or just wait till after I workout to eat. But I'm nervous that I might pass out. What do you think?