constipation, drug induced
"The nausea hit within 20 minutes or so.  I kept trying to vomit in the toilet, but just dry heaving.  I was  crying at the same time and my poor cat was standing near me crying, too.   I was sick for hours and really thought about calling an ambulance.  I laid down with a blanket and was shivering.  This has been the worst experience I have ever had with a prescription drug.  I feel so bad I will not be able to take my other meds tonight.  I am afraid I will throw them up."