Do we have some runners here?

Do we have some runners here? I've been running few months and can say that my stutter got worse. Before when I was inactive I still stuttered ofcourse, but felt more ''grounded"-stable, now I feel very unstable because I think I developed shortness of breath and due to that I strain my belly muscles every time I speak which leads to exhaustion after two sentences. To add, now I feel like i can't connect speech and breath if you understand. Please runners whats your experience?