Severe WD's can have vomiting continually, shaking, tremors, nausea, diarrhea, unable to sleep, restless leg syndrome
, panic attacks...you get the point...This will go on for 4 days, than settle down until you just feel crappy for a week or two).
If the worst happens, then go back on your dose, and arrange getting clonidine (3xday) for help. Perhaps zanax for a week (only! VERY addictive, benzo's). Immodium for the stomach, an antihistamine for the "oversensitivity".