Dream about being bitten by a snake on the left arm signifies a female in your life who is emotionally cold. You need to be more accepting of yourself and less judgmental of others. Your goals are temporarily hindered and as a result, you are unable to progress any further. The dream is a symbol for poor judgment or a bad decision that you have made and regretted. A situation may look tempting and inviting, but it is in actuality very difficult to handle and control.
Being bitten by a snake on the left arm dream is a metaphor for your inner strength and your ability to rid yourself of harmful and destructive behaviors. You need to slow down and set some time for yourself or else run the risk of collapsing from exhaustion. You have the tendency to let your emotions get out of control and lose your temper. Your dream is sadly a warning for indulgence, celebration, reward, or temptation. You may be trying to break-up with someone who you are attracted to, but can't be with.
If you dreamt about being bitten by a snake on the left arm:
It would be better if you acknowledged these problems, and began now to deal with them honestly and openly. Make a start and you'll soon feel better about everything.