I don't really know the best way to explain this but for my whole life, I have never really felt anything interesting(I'm 18f ).  I feel the normal stuff like being tired, and hungry, but to my knowledge, I've never felt sad or happy.  I've been angry a few times but that's very rare.  
I've been seeing a few therapists over the years.  The newest therapist I've had for a few months have said I could have some kind of depression.  Which I don't think is the case because I'm never sad about anything.  

I don't know if that made sense or if it was too far on the rambling side.  But I guess I was wondering if anyone has or knows of something like this that could tell me what it is?
I could go into more details on it if anyone is curious