I have removed the back freezer compartment, confirmed drain was clear. Removed control panel in fridge, checked vents and confirmed drain tube was clear.. water is trickling out the hose into drain pan @ bottom. I don't know what else I should check. I have adjusted temperature in freezer and in fridge. Also, there is a gurgling noise from underneath sometimes when fridge door is closed.

You need to do a major cleaning. Wash out the drain pan in freezer by removing cover to coils and flushing with water hose and wash out coils under unit along with drain pan. It is best to take unit outside to do this. DrTom4444

You will need to contact a service tech through your manufacturer. Sounds like the unit needs a "gurgle" kit on the drain tube. Not a DIY job.