Propranolol is actually used for high blood pressure, essential tremors, migraine headaches and can actually cause fatigue and depression in some individuals, as these are documented side effects. Diazepam and alprazolam are for anxiety and can actually cause depression, due to their sedative effect. I'm just not seeing that you are on anything to lift your mood. Are you taking anything else? I hope you don't feel I'm grilling you. I just want to help.