not so juicy...

I'm having a hard time...well I'll just say it staying wet down there during sex. My sex drive is normal, I've increased my water intake, improved my diet somewhat,  try to be more active, lube, stimulation, spit, more foreplay, etc but I'm still just not as wet as I used to be, and I'm only 21 years old. I'm just not so sure what the next would be fore me, should I consult with my gynecologist?