Not sure what's happening

[Partways]

Since 2009 I've had a pretty weird cycle where I lose a bunch of hair in the summer time and then everything is fine again during the fall-spring. I haven't really paid much attention to it until this year. Can anyone tell me what's happening? Should I go to a dermatologist to see if I have male pattern baldness? The first two pictures are from about 6 months ago. The last two pictures are from today...

 

[badgenome]

I can't tell you too much since I'm still pretty new here and learning as well, but I too have noticed more shedding of hair in the summer as opposed to the rest of the year.

 

[The_Mentalist]

We cant see the temple very well; but your hairline might be just the way natural for your individual traits, not sure until we see more temple pictures. The top is thinning but that could also be just the way you are born with not so dense follicles. Seeing a derm is a good idea.

 

[Skullator]

Your hair is wet in the last two pictures so it's harder to tell. Wet hair tends to look thinner.