Your emotions can change a lot while you're sober. After you quit drugs or alcohol, you may feel more irritable, anxious, or depressed. The first year of sobriety can be a challenge, and many people experience a mix of emotions. However, after a year of sobriety, most people report an improvement in their mental health.
No matter how many months you're sober, you could experience drinking and using dreams. These dreams (or nightmares) can make you feel anxious when you wake up and even cause cravings.