I been taking dilaudid .4mg for a few days maybe 4 days once a day for maybe a few weeks less than a month I believe for rectal pain after surgery I don't want to use this med anymore, I was wondering how long the withdrawal phase will last or if I will get any symptoms. For such a low dose I never, never go over .4 mg in 12 hr periods every time I have used it. I was feeling a little scared because I stooped and today I felt myself breathing faster without having trouble breathing or shortness of breath, a little anxious and scared. I also at times feel overly excited or I should say starttled with common household noises. Am I withdrawing? If so how long dose it last for such a low dose, and frequency?