I'm sorry to hear what you have been through for the last few days. Indeed, some medications may cause rebound headaches
is generally well tolerated and side effects may include any of the following: nausea, constipation, dizziness, drowsiness, vomiting and including headache. . Less commonly reported side effects include itching, sweating, dry mouth, diarrhea, rash, visual disturbances, and vertigo.