I'm wondering if I'm over doing it somehow.....I'm 22 weeks today, mother of two active boys and working 16 hours a…

I'm wondering if I'm over doing it somehow.....I'm 22 weeks today, mother of two active boys and working 16 hours a week(2 days a week; 8 hour shifts; 10pm-6am) I noticed today after my third day of a long shift( I worked last Friday same hours as above) that I'm swelling and having itching/swelling in my hands and feet. I'm on my feet all my shift when I work, baby has been moving, I've been having headaches with sometimes causing spots. I don't have a appt with my ob until wed. Should I be worried about something?