  We use point contact spectroscopy to probe the superconducting and normal
state properties of the iron-based superconductor
$\rm{NaFe_{1-\textit{x}}Co_{\textit{x}}As}$ with $\rm{\textit{x} = 0, 0.02,
0.06}$. Andreev spectra corresponding to multiple superconducting gaps are
detected in the superconducting phase. For $\rm{\textit{x} = 0.02}$, a broad
conductance enhancement around zero bias voltage is detected in both the normal
and the superconducting phase. Such a feature is not present in the
$\rm{\textit{x} = 0.06}$ samples. We suspect that this enhancement is caused by
orbital fluctuations, as previously detected in underdoped
$\rm{Ba(Fe_{1-\textit{x}}Co_\textit{x})_2As_2}$ (Phys. Rev. B 85, 214515
(2012)). Occasionally, the superconducting phase shows a distinct asymmetric
conductance feature instead of Andreev reflection. We discuss the possible
origins of this feature. NaFeAs (the parent compound) grown by two different
techniques is probed. Melt-grown NaFeAs shows a normal state conductance
enhancement. On the other hand, at low temperatures, flux-grown NaFeAs shows a
sharp dip in the conductance at zero bias voltage. The compounds are very
reactive in air and the different spectra are likely a reflection of their
different oxidation and purity levels.
