Hi Peter
The Nausea sound like a common side effect of the metformin (my gran, for example is diet controlled because she can't take the stuff at all without being really ill).
The other symptoms could be you body reacting to high blood sugar. I'm guessing that as you've just been diagnosed and put on Metformin that your blood sugar levels are, or have been quite high. Certainly before i was diagnosed i used to walk to work feeling like my legs were made of granite, and i had a persistant itch (i won't tell you where...but it was almost certainly due to there being too much sugar in my urine). Body fluids do acumilate sugar if you're an uncontrolled diabetic (although i do like that term, it sounds you've just gone a bit nuts..."i'm an uncontrollable diabetic! hahh!"), so it could be that it's making your sweat a bit sugary (erk, mind you, you could argue that it makes you smell sweet.).
Generally i think we're all thrown into a state of mental chaos when we're first diagnosed, i considered myself that it would come to me in the end, but certainly not this soon. Once you're feeling a bit more settled, and it won't happen right away, you may feel better.
Metformin and alcohol do have a quite serious interaction, but it is rare. I personally manage to drink a little now and then and i've never wound up in a coma, but it has happened to some people. I suggest, as Northy says (strange how i keep typing the same thing "as Northy says" hehehe) you have a little and see how you feel. And don't drink alone, make sure there is someone who can help you if you do have a problem.
Welcome to the forum, so far the best think for me about having diabetes, but to be honest , that's not saying much, i can't find much else good about the disease. 🙂
Rachel