How Can Vaginal Wetness Causing Problems In Intercourse Be Treated?

hello, my problem is to much wet vagina all the time.This is seriouse problem , becouse my partner and i cant feel anything during sex becouse of too much wet.When i am tired or non sleap the problem is even biger.My doctor told me that my problem is mabye in my head, becouse resolts of analises were good, like i am healty.i am 32 years old and i have this problem for last 3 years.it is very frustrating for me becouse i notice that my parter avoid sex. Please help me doctor.Thank you so much!!