It does feel better to be more open and honest
Amen to that. I recently started forcing myself to be honest with what I think and feel. I even posted a lengthy personality inventory....then I hid in my house, with the phone turned off, for 10 days. But the sky has not fallen, and it's business as usual.
Before, when I'd open up to people, I'd get the same feeling. I'd berate myself for seeking attention. Don't know why, since that's what humans naturally do. And there are some good reasons for seeking attention. In your case and mine, we are indeed looking for attention, but we're doing it to receive feedback. It's important for our growth and recovery.
In a way, someone not caring about your moods is actually a good thing. That might mean that they are not bothered by them. It's kind of like passive but positive feedback. I'm assuming you're talking about "offline" people. And you're right, you'll get and give varying degrees of concern. That's only human, too. Don't think of it as a personal affront. People have limited resources. There are days that I won't return my mother's phone calls because I don't have the emotional resources to talk about her problems. I still love her, though.
And yes, it does make me feel a bit better that you posted this. It reminds me that I'm not the only one who feels this way. So in a way, this answer is partially self-serving. That happens a lot, actually. A lot of times I'll accidentally help myself while answering a seemingly unrelated post and realize it a few days later.
I hope you keep doing what you're doing. And I hope I do, too. It scared the crap out of me at first, but I think I'm better off for it. It's nice to be me just for the sake of being me.
Do not take my advice before talking to your doctor/counselor/other professional. Depending on where you live, you may be able to find free, confidential care. Most importantly, sometimes your shrink can be wrong. Get a second opinion.