Need help!

Ok I am 24 weeks and today when I was at my sons dr appt I got short if breath and dizzy. Have gotten short of breath before but never dizzy and felt like I was going to faint. It happened two more time. When I got home my sons dr called and said his flu test came back positive. I called my ob and left. Message but u didn't tell them about my Sob or dizzy spells just to ask about when I should look for. Should I be worried and call them back?