I masturbated thrice in a row which was out of curiosity and i have not maturbated that much since. i have been having weak erections since. pls help.

Let's wait: You can't damage yourself permanently doing this, and unless something else is badly wrong, things should get back to usual after a few more days. If not, and it's obvious that you are having erectile dysfunction, get with your physician. Anything from hemochromatosis to a prolactinoma may be an underlying cause that's best caught early.