Could i have withdrawal symptoms after only taking ativan (lorazepam) for 3 days?

No: no you could not,your body might be liking the effect and want to duplicate it but not enough time for addiction.

Unlikely: It is unlikely that you would have any withdrawal after taking it for only 3 days.

Not likely: It usually takes longer than 3 days to build up a physical dependence to Ativan (lorazepam) and have physical withdrawal symptoms when it is stopped.

Rather unusual: You do not list your symptoms, but would not expect cessation of ativan (lorazepam) after 3 days to result in "withdrawal" so quickly. Of course, I do not know how much you were taking, which could affect this. Do contact your doctor and have a discussion.