some pain can be pychological, halfway through my CS i started screaming saying i could feel bad pains while the surgeon was trying to get the placenta out, they had to give me a general anesthetic so he could finish.
Now i am not sure it hurt at all, im'e sure if i could have felt it it would have been a lot worse, and i probably would have passed out.
I have had bh since about wk 26 and over the weeks they got slightly stronger, i'm now due in 3 days and they are more regular and stronger although i'm sure I will know when they are contractions ???!!
BTW at first they were uncomfortable but now they do hurt and have done since about 30+ weeks..maybe not contraction pain (never had a baby so wouldn't know) but still not an enjoyable experience! Pain though differs between everyone !
My first pregnancy I had BH quite early on, and din't actually realise I was in labour until I was quite far gone, I thought I was being a bit of a wuss!!! It was only when I had severe backache as well that DH thought we should go to hospital (DD1 was 5 wks prem).
In my second pregnancy I had BH from 20 wks, at times I had to breathe through them as they were very "uncomfortable"!!! Again, it was backache that made me know I was in labour.