well I think I just had one but it hasn't came back again but it felt like a really sharp pain down in my lower stomach area and it hurt so bad I almost cried

it's a tight feeling. your stomach/uterus will get rock hard and they can last anywhere from a minute to 30 minutes in duration. they get stronger and hurt more with each one you have. the pain can and most likely will take your breath away

I don't know what they feel like but I know how far apart they are depends on your body they can be 10 mins or 2 mins just depends