need help and advice

Hello. So I always knew I would suffer from baldness. My dad has been bald ever since I can remember. I have also slowly been experiencing it since the age of 19. I am now 25. As expected, the balding is quickening exponentially. However, right now I am really worried. Earlier tonight my forehead tingled a bit, so unconciously I pulled at the hair there to see how much would come out (it has become a habit unfortunately), and more came out than I expected. So I started testing the rest of my head to see how much would come out (running my hand through it etc.), and I saw that a lot was still coming out. I went into the bathroom and started ruffling my hair over the sink for a couple seconds (I have a shaved head btw), and when I looked at the sink, I instantly got scared because there was easily 10-20 strands in the sink. Usually after shaking the loose ends off not much more comes out until more time has passed (like after I take a shower), but whenever I ruffle my hair now it just keeps coming out. I'll be bald in a couple years at this rate.

Please help! I am not sure if this is normal as far as balding goes. I can honestly live with going bald if that's all it is, but I'm really scared that it might be something more now. Does it get to a point where this much is suppose to start falling out? Any advice or sharing of experience is greatly appreciated!