I just wanted to say I am sorry you feel this way. But also I wanted to point out that I don't know your full medical history, have not followed you through your pregnancy etc. I can give you the "common" causes for what you feel. It may be as simple as you even being a bit dehydrated as well. Even if you were to call your doctors office that has been monitoring you throughout your pregnancy, they can't tell you unless you come in and be hooked up to the monitor and/or checked for possible dilating as well. This is why I had suggested you need to call as this is not "normal" but it can be in certain situations, such as the stretching of the uterus, it may be the position the baby is in as well. But without seeing you Hun, there is no way to say if what you are going through is part of the "normal" or something that needs to be looked into just to make sure it's nothing serious.

This is a good site with a lot of experts in several categories and helping and/or directing someone for further evaluation has helped a lot of people.

Hopefully this helps you understand our end a bit better. It's not just giving a "generic" answer, it's giving an answer based upon the information we are given in your question. Which without further evaluation "in person" is no way to pin point. Just as your doctor couldn't either.

Hope this helps Hun and best of luck to you.