You should not stop these medications abruptly on your own. Your treatment included a combination of pregabalin and methylcobalamin, alongside a calcium and vitamin D3 supplement. Suddenly stopping pregabalin can lead to withdrawal symptoms, such as anxiety, sleep issues, or a recurrence of your back pain. Since you have completed the three-month course, please consult your prescribing doctor. They will evaluate your recovery and guide you on whether to safely taper off the dosage, stop the treatment, or continue based on your current health status. Please keep taking them as prescribed until you speak with your doctor.