How long have you been doing it? I remember when I was first getting into running and struggling like this.

I forget how much time it was, but within a year, I was running a 5k at least twice a week. In addition to that, I ran 8k twice, but that was pretty intense and I had a lot of pain after doing that. So, I stopped doing that.

What I am trying to say is just keep with it and if you are running a pace that causes you breath so heavy. that you can't talk, then slow down your pace.