Vertex thinning concerns

This is so weired. My hair seems like its looking better at the front, but now my vertex seems like it is thinning. It had already a little bit of thinning. Could it be a shed? Why would one part of my hair seem better and the other worse? I am using the scalp device for the galea btw.

All this time I have always been worried about the hairline, and the vertex never was a problem for me, until about a year ago. What does this mean? I remember reading something that vertex thinning was due to DHT levels, and that it was a bit different than the front. What is the best way to target vertex? And also is it true that vertex thickening and regrowth is easier to achieve? Are there many that has achieved it?

I have also recently taken up interest in some of the Maxitone products and was given a discount as part of the my gym membership. Is whey protein good or bad for hair loss. I think the maxitone whey protein is of the form Whey Protein Isolates. Should I be worried about using this product?

Regards,

Mik