Are your switches in the control panel on the upper kitchen cabinets by the door like our 2016 26BHS? Our has switches for the awning light, kitchen lights and main living area lights.
I would try pulling the cover off the control panel and see if something is touching in there that may have come in contact when driving - its a bit of a rat's nest in there and all spade connectors on the switches so entirely possible. Its a bit of a PIA to trouble-shoot the awning light because of the separate relay panel for the remote (behind a cover inside the upper cabinet).
When you say lights above the sink do you mean the two recessed into the wood on the ceiling or the under-cabinet light? And did they work before and this is a new thing?
2016 Jayflight 26BHS Elite
2014 F150 4x4 Super Crew, Eco-Boost, Max Tow
Bayliner Trophy 2002ff