Can't say my husband's name

lamby

So this has been an ongoing issue for a while. For some reason I feel weird calling my husband by his name. I don't even call him by a pet name. I have been trying to figure out for a while why I'm like this. In past relationships, I had no problem calling them by their name or pet names. So I'm not really sure what my deal is. I didn't realize I did this till he brought it to my attention. I don't want to be rude to him or make him feel like I don't care about him, but I just can't get over the overwhelming uncomfortable feeling I have when I call him by name. I either just say "hey" or "hmm?" (which he did first to me so it became a thing that we both do). He calls me by my name but it makes me feel uncomfortable too. Like I'm in trouble or something which is ridiculous.

Please let me know if you or someone you know is or has gone through the same thing.

Try not too be so harsh, as this is something I'm actively working on.