Alright....what happened to you as a child that would provoke such thoughts? I'm guessing from the way you worded your question that you think your helping your mom by feeling this way and you just really want to help her. The Oedipus complex was created by Freud and in a nut shell claims that all boys are in love with their mothers and jealous of their fathers. Often wanting to kill them. Your dad is still alive right? just kidding. Anyways...your mom, no matter how much you think she needs you, doesn't need you that way. Trust me on this. Do you ever see porn on the internet of sons having sex of their mothers? I haven't, so we can assume a great social abnormality in this concept. A lot of the time when boys are left alone to be raised by their mothers, they tend to feel like "the man of the house". In your case you seem to want to prove it. I have only seen this kind of case twice and the boys were molested as children. Were you molested? If so, or If not, either way, the feelings your experiencing are normal and your definitely not alone. These kind of feelings have been written about in plays and books since man had the ability to preserve such thoughts. But i will warn you, they are absolutlely damaging to families. You have every right to inform your mother of your thoughts. Please don't inform her of them so she will want to act on them (she won't), only do so for the purpose of getting help. This is not a problem that a forum will fix. You need to talk to someone or this may hold you back, or even worse, destroy your chances of future healthy relationships.Its bad enough that most men try and find someone like their mother, imagine how hard it would be to find a girl after dating your mother!