Roof Inspection.. nail heads and uneven plywood???

here i go again..LOL.. panic time.. just did my roof inspection(dealer did a free roof inspection last week) i noticed some spots that looked like nail heads.. could have been there all along, but is this common? you can see them popping up some.. I also notice some of the plywood seams seem unlevel.. I have had no leaking troubles.. this unlevel plywood seam on the roof is nowhere near any vents or leak points... is this another thing that im over analyzing? freaking out again...
sorry guys, i think maybe im just going alittle overboard now..camping starts in a week and maybe im creating problems that i shouldnt... it will get better.. i will order some eternabond and put over the nail heads that i see on the roof...still not sure why some ply wood looks uneven, but if dealer did roof inspection last week, and said roof looks good then im not gonna worry about it.... taking camper up to my seasonal site next week and gonna enjoy it.. i think next winter i will find indoor storage..I NEED TO STOP WORRYING ABOUT THINGS...