  Understanding superconductivity requires detailed knowledge of the normal
electronic state from which it emerges. A nematic electronic state that breaks
the rotational symmetry of the lattice can potentially promote unique
scattering relevant for superconductivity. Here, we investigate the normal
transport of superconducting FeSe$_{1-x}$S$_x$ across a nematic phase
transition using high magnetic fields up to 69 T to establish the temperature
and field-dependencies. We find that the nematic state is an anomalous
non-Fermi liquid, dominated by a linear resistivity at low temperatures that
can transform into a Fermi liquid, depending on the composition $x$ and the
impurity level. Near the nematic end point, we find an extended temperature
regime with $T^{1.5}$ resistivity. The transverse magnetoresistance inside the
nematic phase has as a $H^{1.55}$ dependence over a large magnetic field range
and it displays an unusual peak at low temperatures inside the nematic phase.
Our study reveals anomalous transport inside the nematic phase, driven by the
subtle interplay between the changes in the electronic structure of a
multi-band system and the unusual scattering processes affected by large
magnetic fields and disorder
