It is important to talk to your doctor about the prolonged palpitations you are experiencing after taking Humira. The medication is known to slightly increase blood pressure and can cause some cases of arrhythmia. Your doctor will be able to determine the exact cause of your palpitations and provide appropriate follow-up care. It is also advisable to monitor your alcohol consumption as it can have an impact on your cardiovascular health. You can try reducing your alcohol intake to see if your symptoms improve while waiting to see your doctor.