<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, I have been feeling really down lately. Ive also noticed that Ive been acting more aggressively towards my family and friends. On top of that, Ive been struggling with drug abuse.  <response>: Based on what youve told me, it sounds like you may be struggling with barbiturate abuse which can lead to depression and hostile behavior. Well need to do some tests to confirm, but we can begin discussing treatment options today. 