I am more worried about the change in overall hair density than hair loss.

I haven't really been the type to lose a lot of hair, but at some point, I started noticing that the ponytail itself felt thinner when I tied it up.

My parting hasn't gotten much wider, but it bothers me because my hair seems to have lost its strength overall.

It is also difficult to distinguish whether it is a natural change that occurs with aging or if actual hair loss is starting.

Rather than just trying to change your shampoo or scalp products, I think it would be best to check your condition accurately at least once.