Is there a setting where I can get a 'Notification' (ie: a number at the top right of the page under 'notifications'), when someone replies to a thread that I'm 'Subscribed' to?

I already have it set up so that I subscribe to any thread that I post in. However, I'd like to know when someone else replies to it, and there's no way for me to know unless I manually go to each thread and check - it's inconvenient.

Any ideas?