Grumpy & Irritable before Labor?

Liza
FTM here, and just wondering if anyone else became very grumpy & moody right before going into labor? I'm 38w1 and  I woke up today in a rotten mood, snapped at my husband (we are newlyweds and I don't usually lose my temper with him!), got a little edgy with my boss (she dumped a project on me today since she is going on vacation and wants it done by Friday), cried at the oil change shop because they kept trying to sell me add on services even after I explained money is tight right now with new baby coming, and almost completely lost it with our tech support guy at work when I lost changes to a document that I had been working on since noon when they did an update to our VPN client without letting anyone know. I just want to walk out of work and not come back in anymore until after my maternity leave is over.
So far this pregnancy I haven't been very emotional or short tempered, but today I've had it with everyone. Anyone else feel extremely grouchy right before going into labor??