Librium and ambien taken last night and suboxone taken this morning. All new from a new doctor. I have been very weak and unsteady the entire day. Which of these could be the cause?

They all can cause sedation and fatigue so it is probably the combination.

Librium is usually given to help with narcotic withdrawal and should not be needed if you are taking suboxone, which also fights withdrawal. Ambien is a sleeping medicine similar to Librium (and so a bit redundant). If the goal is to get you free of addicting drugs it is questionable whether you should be taking the Librium and Ambien.