Most people when they are having a tough time emotionally they just lay low, become less active but nothing that interferes too much with their normal life. But people who stutter, especially those with psychological based stutter, we just cannot function in those times. Words never come out the way we intend to no matter how hard we try. The smallest of conversations feel like climbing a mountain. There is no other advice from me other than if possible identify the cause why you're more anxious or nervous right now and try to work on it. Hopefully this bad phase passes.