I've been there and actually stopped going to the gym because a woman walked up to me and told me I was an inspiration to people at the gym. I had lost 130 lbs. at that time and I was totally embarrassed that people had been watching me and were actually talking about me. People I didn't know, I mean.
So I let that embarrassment stop me from continuing on at the gym and I eventually gained back 40 lbs.
That was about a year and a half ago.
I'm back at the gym now and when I can't get there I'll do my treadmill at home, (sometimes
)but honestly, I'm ashamed of myself for letting that derail me from my work outs. I love going to the gym and working out. And really, what did that lady say that was so horrible? And what are people who are noticing you going to think? That you are fat? Or "Look, that girl never gives up and look at how she's changing? Good for her!" Because that's what we're all thinking when we are there and happen to notice someone. So you're not alone in your thinking that people might be looking at you and guess what? You're not alone at the gym. The people who are noticing really ARE rooting for you and that is a good thing.
I hope that makes you feel a little better.