Nofap day 3

Hello all fapstronauts, it's day 3 of my nofap challenge, I feel great, energized and motivated to go further, but at day 1 and day 2 something weird happened.
During day 1 and day 2 I started to feel weird, I had the feeling that I wrongly started nofap, that feeling also was pushing me to relapse, but I didn't give up. Is that normal feeling? I wanna let you know that I started nofap on sunday morning, at 09:03 am, and it was planned since couple of days.

At day 1 strange thing happened to me, I was sitting at the computer like always, and went to google drive, where I save important files, when I logged from one account to another, I discovered a folder, I swear didn't know what was inside of it, when I opened it, I saw nudes, pictures of nude women and one picture of famous pornstar in sex position, I didn't open it on purpose, I didn't know what was inside of it, and I immediately closed it, I was scared like hell. Does this situation is counted as relapse?

So I have few questions I need to ask:

-Does the feeling I mentioned is normal during nofap?
- Is it normal to not have urges during first few days?
-Does the situation that happened in day 1 is counted as relapse?