Sibling Hair Loss Pattern

I have a question regarding hair loss patterns in siblings. Hair loss is frequent on my fathers side of the family (it is almost nonexistent in my mothers side). My father and uncle were both NW 3 around age 35, but they are NW 6 now. My brother on the other hand had a thinning 3V pattern at the age of 23, and is slick bald NW 6 at 30.

I have noticed a similar thinning pattern in myself when I was 23, and was wondering if I was going to follow the exact same hair loss pattern of my brother? I wanted to find out if there was any chance of me following a different hair loss pattern, seeing as my brother got from NW3 to Nw6 in almost half a decade, the rapid progression of his hair loss has been an issue of constant worry for me.

Seeing as we started thinning in the same pattern at around the same age, do you think I will follow the same route (with the same balding speed)? I have seen a few doctors regarding the issue but I believe your experience in the practice could give me a more accurate opinion.

I did use propecia and minoxidil for 2 years which has given me amazing results, but I need to quit propecia due to side effects.

How could I possibly provide a more accurate opinion than the many doctors who has actually examined you?
Anything is possible I suppose, but the main issue probably has more to do with your fear and insecurity than the actual hair loss.
I always discuss the value of a physical exam and if you are looking for a diagnosis of your hair loss issue, you need to see a doctor in person.
If you are looking for for a psychological support, you should also seek another type of doctor. I don’t mean to sound dismissive but searching for your answer on the Internet will cause more anxiety and confusion.