The one thing I believe is that if you think you are losing your hair. you are. No one else will realize as quickly as you in most cases. Other people will enable you by telling you it looks fine. But believe yourself. You know better than anyone.
This is not unusual at all. You seem to fit clearly in to the Norwood Classification known as 3V. To wit:
Type IIIvertex
• Hairloss predominantly in vertex (crown)
• Frontal hairline recession may be present
Most of your hairloss is in the crown right? So that is you right...