Unable To Leave Comments on Facebook ??

Coming up to a Month now I've been Unable to leave a Comment to a Family or Friends Post on Facebook . Haven't the Slightest idea what could have caused it ?? If the Sensor Gods @ Facebook went off the chart ?? Or the Google Chrome Browser same deal ?? Have tried other Browsers to No Avail.. I can type in the FB Comment bar but there is no Send tab (??) didn't even get an email from Facebook to the What & Why of it or even if I was Censored by FB , No idea how long they intend on Blocking Me ?? Unfortunately FB is so well Insulated it's Impossible to Get a Positive Answer ?? Thoughts Appreciated, Cheers Thanks