Am I going bald?! 23 years old

[mikeswick]

Hey guys, my dad told me he thought I was thinning and going bald about 3 months ago and ever since then I been kind of wondering if I was. No one else said anything about it, and then I took pics of the top my head and some said I was thinning, others said it was nothing to worry about. Here are some pics after I got a haircut:



P.S. I have naturally wavy hair, and if you are balding, does it look worse if you grow your hair out, and would I be able to recognize it more, if I was indeed balding?

Thanks lemme know what you guys think.