I don't know if this is related or not, but I'm going thru something similar at the moment. Am taking my second day off work today and have had it bad since Friday. I'm the same as you - 15 weeks. I have mainly pain, but then have extreme nausea and gagging (no diahorrea thankfully). I went to the DR yesterday and got tested for a bladder infection, but the results could be as far away as FRIDAY. How rediculous. Will try to go back to work tomorrow as I hate taking time away, but feel I need to rest and look after myself right now. The pain I have is mainly central and lower down (under growing belly), and sometimes to the right. Could possibly be gas pains, not sure. I do feel like if I could just release wind I'd feel better, but can't (sorry if TMI). I've been having heartburn and DR said the nausea could be from that (I didn't have any M/S during first trimester at all!). I'm taking Gaviscon as recommended by OB and Chemist (liquid - can't handle the chalky tablets).

Hope you're feeling better soon. I'll let you know if I find out what my DR says and maybe it can help you too. I'd definitely take a trip to the DR tho' if it's been that long. If it was a regular tummy bug you'd think the worst of it would have passed by now. Look after yourself.