Is it normal to have a weak bladder?

You have 3 options:

1) go to a doctor to get your weak bladder surgically corrected
2) wear diapers for the rest of your life
3) find yourself a guy (or a girl if you're a lesbian) who has a pee fetish so you can embrace your incontinence rather than feel ashamed of it

PS: I'm one of those guys with a pee fetish.

Its really common

My have a really weak bladder. Think u should go to the doctor.. And try to not hold urine in often and go even when u don't have to.

Have you held in urine in the past?

Yeah, I agree with chubby_bunny. I sort-of had the same problem. I've never had sex either. My aunt (who's a doctor btw) told me to flex the bladder muscle. For example: while you're going to the bathroom, stop urinating when you're about half done. Hold it for a minute if you can. Start and stop again. Continue until you're done.

You can flex your bladder muscle like this even when you're not in the bathroom. Just be sure you don't have to go. This should help strengthen your bladder muscle so you don't have accidents. I hope this helps.

You should see a doctor. There are pelvic exercises you can do to strengthen those muscles.