HeELP! 29wks 3 days pregnant is this normal?

couple times a day for the last 3-4 days now I ben getting slight pains in my lower abdomin and will get really nausous with it to the point it feels like im going to throw up so I go to the bathroom im feeling weak and heavy in my shoulders I feel shaky and it sucks : ( so Anywho I go to the bathroom and think im going to throw up but instead go #2 and its really loose powdery/watery (sorry tmi) and it makes me sick & I seem to only have that kind of #2 lately by the way. anywho so I so all that which literally just happened and here I am back feeling the same way had ro run back to the bathroom thinking bout to throw up but im going #2 again and mind u this isnt 3min later. :( this sucks whats goin on? by the way I drink about 4-6 44oz glasses of water a day I drink plenty of water