I had my breech baby turned, after trying accupuncture, which didn't work. Turning didn't hurt, but it felt very odd and I didn't feel right afterwards. My first baby had been born after a four-hour labour, but this one felt completely different. I never seemed to go into labour, but I was in a lot of pain for several days. Eventually, I started bleeding and went into hospital, where they found that I was ready to give birth. My baby's oxygen levels kept dipping, so they became very concerned about me and said I'd need a Caesarean if I couldn't get him out soon.
When my son was born, shortly afterwards, he had the cord wrapped twice round his neck and three times round his body, which is why his oxygen levels were dipping each time I had a contraction. He came out not breathing, but it was only a matter of seconds before the midwife got him breathing. My DH was absolutely terrified, but I was in a daze.
I worried for ages afterwards that DS2 would be brain damaged, but he is an extremely bright, healthy seven-year old now. However, I do think we may have had a lucky escape and I do suspect that it was turning him from a breech baby that caused him to be all wrapped up in the cord and stopped me going into proper labour. A midwife told me later that I had had what they call 'a silent labour'.
If I were ever in the same position again (not likely as I am now 48!), I would not have the same procedure, but would opt for a Caesarean.
Incidentally, my first baby was in a posterior position and was successfully turned because I used Jean Sutton's kneeler-rocker (and yes, I certainly did feel it when he turned, although it wasn't painful). This was available from her daughter in law on 020 8890 8298, but I'm afraid this was 13 years ago, so I don't know if it is still valid. I am very thankful that I used the chair, as I had a very quick and relatively easy first birth. I'm not sure if it would work for a breech baby, but it might be worth a try. There is a website about turning a posterior baby here.
Hopefully, your baby will turn all on his or her own, but there's no harm in trying to encourage him/her as well.