Of course not. The vast majority of "social blunders" must be committed by perfectly normal people who are simply ignorant of a particular rule or rules. I assume that the normal but ignorant far outnumber the mentally ill, and I have no idea into which category you yourself may fall.

I would think, though, that for some people anxiety, panic, depression or a number of other things may interfere with their capacity to interact with other, normal people in the manner those other, normal people consider normal.

Take care.