Had two vet visits, been checked internally. Vet grew up on a pig farm and reckons combination of stress & hormones acting like amphetamines on her system. She's had the full cocktail - Betacam, 2 Oxytocin, sedative, antibiotic. Also gave her a Guinness mash with no effect (but she certainly enjoyed it!) We got two feeds of colostrum into the piglets while she was busy voiding the afterbirth. Don't know why she's so stressed - lived here all her life, in her present sty, well handled and usually very friendly. Have been feeding the piglets with a lambing bottle to get them used to suckling from a teat but I suspect by the time they get strong enough to get stuck in her milk will have dried up. She's calmed a little tonight but gets up and moves off as soon as we go near her, so we haven't been able to suckle the piglets or milk her off.
Oh, well, at least it's stopped raining .....