Is it normal to get hard randomly

Yeah. It's called being a dude. Sorry for your luck.

Teenagers pop boners if the wind blows.

Is needing to drink and eat normal??? Haha :-)

It sounds like you need to make it tickle more and cum

You need to maintain your cock more attentively. Jerk off every night. Look at internet porn sparingly on a limited basis, and enjoy having your balls jiggle when you walk around school.

Your balls are always producing sperm and your cock doesn't know what to do about it; poor guy.

Depends on your age.

As a teenager or even in your early 20s, yes. You're at an age where your hormones are crazy, and you get hard over literally nothing.

It settles in adulthood.

Yep. I've felt that. and seen the tents. lololol

Yes, especially if you're a teenager.