First of all, great job on day 9! I'm on day 10, myself.
I think the one question I have come to loathe above all others, even though I've earned the reputation is, "Have you been drinking?" Holy sh1t, how I hate that question!! Sometimes, I'll be a smartass and say, "Sure, just had a glass of water. Earlier I had a cup of coffee, and later I might have some tea. Yeah, I've been drinking." I know that's rude and sarcastic but I get where you're coming from that it feels somewhat demotivating to be asked if you're drinking when you're not and haven't been. Of course, I even hated the question when I had been drinking.
I also tend to isolate and avoid people. I've been trying harder just to speak to random people I meet in public. Just strike up conversations about anything that comes to mind. I'm very introverted, too, so it takes a lot of effort and feels awkward, but it sure feels better than not saying anything to anyone at all.