Photos look different after exporting

[jenalee_james]

My photos look exaclty how I want them and once I export them there seems to be a lot of discoloration. Specially anything red-hue becomes really splotchy and unblended looking. In b&w photos they'll be completely b&w in lightroom but once exported have weird splotches of green and pinks. I'm not sure what's going on or how to fix this. Any tips? 

[selondon]

It may be best to show some before and after photos or even a video of the process, to help a member of the community try to solve your issue.