Breathing properly

30m / 5'10" / 120-130 lbs / Male / Escitolapram 15 MG / herb-smoker / depression and anxiety / new england.

Your supposed to breathe with your diaphragm/stomach?

Tldr: how do you breath properly. I cannot stand up straight and breath with my stomach. I cant get enough oxygen that way and it feels too tight. Are my muscles just too used to chest breathing?

Kind of weird post.

I've lived a stressed out life. Im in my early 30s. I probably have some mental issues that are unmedicated. (High anxiety, depression, possibly bipolar) im saying that just so people can get an sense of how mixed up and stressful i am.

Since i am always anxious i feel like breathing with my chest became normal.

Laying down flat relaxing and managing my breath i can breath with my stomach. But if i standup it is impossible for me to get enough oxygen. Is this normal? I ask because i am wondering if a lifetime of breathing with my chest and having bad posture screwed up my lungs?

Idk i just can seem to get enough oxygen when i breath with my stomach. Maybe that's why i breath with y chest in the first place.

I feel like breathing with my chest is causing discomfort and possibly other problems. Last night in i was managing my breath and started breathing with my stomach only and it felt so good.

Should i practice breath standing straight up? I just feel like i dont know how to breath anymore. Lol. My stomach is so tight when i stand and breath with it that i couldnt live like that it doesnt get me enough oxygen. Are my muscles just too used to chest breathing?