I am so glad things sorted themselves out. Horrible feelings running riot in your head though, increased with tiredness. Hope you are enjoying your new job.
You get a hormonal wave during labour, no matter what breed. It is a good idea to keep some powdered glucose to put back much needed energy into her quickly. You don't get the rollercoaster of emotions then, don't want the piglets too demanding but human certainly can't have them etc. A nice bit of calming music playing helps both parties. A good mix of guinness and a top up of doughnuts go down well, as do some choice bits of fruit. If you know the farrowing due date you can normally keep some extras in for your girlie.
Oxycetalin is a good purchase, not too much and does make life a lot easier when needed. I think its castor oil that also acts as a milk let down if you massage it into teats. I have used it on sheep. Also agree with the mud on her tummy too, treats sore bits and the piglets get that much needed soil. I had one sow who had half sliced off one of her teats whilst heavily shifting during labour. That was so nasty as she had a big litter and they kept going to that teat and the healing process took forever. Bless her she was simply the best mum but it did test her patience.