Just updating! Things are getting worse, much worse

We drove out to the bush this weekend for my nephews christening (6 hours in the car), by the time I took over the driving at the 3 hour mark, I was struggling to move my foot from the accelerator to the brake and back again By the time we arrived I could barely walk and I limped, shuffled, hobbled all weekend. I felt marginally better this morning (after laying down for 8 hours!) but then even sitting on a hard chair made it bad again. the drive home was rough, I tried keeping my weight on my hip and DH did most of the driving but I'm in a bad way I have a GP appt for the morning to get a Physio referral and hopefully can get an appt soon - I've taken the day off - there's no way I can teach in my current state! I'll call my OB tomorrow too, but I'm assuming that a Physio is what I need?

I'm only 20 weeks... This can't be good newes for the rest of my pregnancy! And it's not like I can rest with two very active small boys and a hubby who leaves at 6.30am an gets home somewhere between 7.30 and 9.30pm!