Diagnosed ptsd and gad

Just looking for some reassurance.
Got diagnosed with PTSD and GAD. Does anyone else have nerve pain? Chronic pain, shortness of breath and fatigue solely because of their anxiety? It’s hard to believe this is just it.

Been to two doctors, both said anxiety.
At first thought it was my low b12 but it’s hardly low enough to cause symptoms, now I’m at a loss. Tired of feeling on edge every single day and looking for some natural
Ways to beat this.
I just want my life back. Thanks in advance.