I noticed whenever im speaking to my certain members of my family including siblings (way older than me), or some authoritative person who look super mean, I automatically change the way i speak without even realising at that moment.

I feel like i become smaller, almost like child like, i nod a lot, tend to smile too much. I feel like i speak like a small kid. Its so different from my normal way of speaking.

But when I’m speaking to any other person, my voice is normal and stable, my back is straight, i sound like an adult. I don’t sound mean or anything, i just sound normal and body language is okay too. Its just when im with certain ppl, my whole demeanour changes. 

Certain ppl and situations does spike up my anxiety like crazy...... but I don’t why is only to some. I did have some non positive situations happen with those ppl....so myb is that. 

I have tried speaking normally to those ppl (ppl who i tend change the way I speak to) when I realize im speaking like a small kid. But it seems the other ppl think im being too serious or im angry. I feel like i need to walk in egg shells around those ppl cause i feel if i said or do something, they’ll get mad and i need to do this in order to keep peace. Is just weird and dumb. 

I don’t know if theres a name for this thing i do, i wish there is so i can google about it.