Have you tried testing your wireframes with users? That might not be a great idea. Usability tests with medium fidelity wireframes often lead to confusion, as users struggle to understand the elements and interactions without context. High fidelity prototypes are typically more effective since they resemble real-world applications and interface they are familiar with.

However, this doesn't mean medium fidelity wireframes are useless - they can still provide valuable insights when shared with peers and stakeholders who understand the design principles.

Engaging with stakeholders and fellow designers can be extremely beneficial at this stage. They can offer constructive feedback and alternative viewpoints on your designs, providing you with new perspectives on how to improve the user flow. This collaborative approach can be more productive and time-efficient, allowing you to refine the design iteratively before moving on to higher fidelity prototypes. Discussing these designs with peers can yield quick and actionable feedback that helps shape the next iteration of your work.

In conclusion, while thorough user research and validation are crucial, it's important to know when and what to test. Not every design decision needs to be validated with end-users, especially not at the medium fidelity wireframe stage. Using common sense and designer intuition, combined with targeted, high-impact user research, will help you navigate the design process more effectively. Cultivating the skill to make informed compromises and relying on your design expertise are essential for producing practical and user-friendly interfaces.