You need to discuss this with your doctor. We do not know your issues. Sounds like withdrawal symptoms. Usually one is slowly weened off stronger meds in place of less potent. Everyone handles this differently however. Calm down, do your breathing exercises and keep you mind busy with good activities.You have some control, but you need to find out why you are on a smaller dosage and what is going on in your life. Good luck..Take care
The reason as to why you experience panic attacks and breakdowns after reducing the Lorazapam intake from 6mg to 2mg is because of withdrawal syndrome. You need not panic as the condition is normal and fades away with time. If symptoms persist consult a doctor.