Hi Jonnala,

Very likely you have spectrum "folding" or maybe incorrect processing of carbon dimension - like a wrong setting of quadrature detection method.

Folding happens when spectral window is narrower than the range of the resonance frequencies.

Thats not so rare situation that chemical shifts of carbons and protons connected to them are uncorrelated and can also "move" into different directions.

Spatial proximity to aromatic groups or other groups with large anisotropic shifts may give rise to such effects in small but rigid molecules. The H may be positioned in the shielding zone and the attached C may be positioned in the deshielding zone of an aromatic/anisotropic group.

Try to search a database of chemical shifts to see if such a pairing has been observed before. Are you sure that you are observing a H-C pair and not a H-(C-)C pair? Also, check the referencing of the carbon dimension (as suggested by Evgeny above).

That type of chemical shift pairing is very commonly seen in steroid and similar ring system structures. If you have a look at the spectrum of cholesterol for example (available on the net) you'll see some examples. As this is a natural product there's a good chance it may be some sort of cyclic triterpenoid or similar.