Unfortunately yes it can. My guess is that you have personality disorder making you prone to mood swings. People are very judgmental and maybe if you could open up a bit and share with them what you're going through could help the situation.
well it is possible your mood swings are the result of an underlying mood disorder. Have you ever been evaluated for one? It is not really normal to have excessive mood swings, and my guess is that there is an underlying biological cause. They must be pretty extreme for people to think you are on drugs.