I had terrible wind, wind pains and horrible bowel movements in the first trimester. I suffer from IBS (irritable bowel syndrome) so I wasn't surprised at all especially as wind and bowel changes are very common in pregnancy.

I find a high fibre diet, plenty of water and a daily dose of Metemucil works wonders.

If you're still getting the runs frequently, I'd get it looked at just to rule out any tummy bugs.

Hope you feel better soon

PS: Degas tablets from the supermarket (in the medicine area) are safe during pregnancy, are natural (peppermint oil) and really help reduce the wind pain. A word of warning, dogs like them - or so I found out!